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1344660 = 223573307
BaseRepresentation
bin101001000010010010100
32112022112020
411020102110
5321012120
644453140
714300202
oct5102224
92468466
101344660
11839299
1254a1b0
13381075
14270072
151b8640
hex148494

1344660 has 48 divisors (see below), whose sum is σ = 3829056. Its totient is φ = 352512.

The previous prime is 1344647. The next prime is 1344667. The reversal of 1344660 is 664431.

1344660 is nontrivially palindromic in base 14.

It is a super-2 number, since 2×13446602 = 3616221031200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1344660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4227 + ... + 4533.

It is an arithmetic number, because the mean of its divisors is an integer number (79772).

21344660 is an apocalyptic number.

1344660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1344660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1914528).

1344660 is an abundant number, since it is smaller than the sum of its proper divisors (2484396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1344660 is a wasteful number, since it uses less digits than its factorization.

1344660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1344660 is about 1159.5947568008. The cubic root of 1344660 is about 110.3750284836.

The spelling of 1344660 in words is "one million, three hundred forty-four thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 73 146 219 292 307 365 438 614 730 876 921 1095 1228 1460 1535 1842 2190 3070 3684 4380 4605 6140 9210 18420 22411 44822 67233 89644 112055 134466 224110 268932 336165 448220 672330 1344660