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1444664 = 231329479
BaseRepresentation
bin101100000101100111000
32201101201002
411200230320
5332212124
650544132
715164564
oct5405470
92641632
101444664
118a7441
12598048
133b7740
142986a4
151d80ae
hex160b38

1444664 has 32 divisors (see below), whose sum is σ = 3024000. Its totient is φ = 642432.

The previous prime is 1444661. The next prime is 1444679. The reversal of 1444664 is 4664441.

1444664 = T137 + T138 + ... + T223.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2777 + ... + 3255.

It is an arithmetic number, because the mean of its divisors is an integer number (94500).

21444664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1444664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512000).

1444664 is an abundant number, since it is smaller than the sum of its proper divisors (1579336).

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

1444664 is a wasteful number, since it uses less digits than its factorization.

1444664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 523 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 1444664 is about 1201.9417623163. The cubic root of 1444664 is about 113.0461085230.

The spelling of 1444664 in words is "one million, four hundred forty-four thousand, six hundred sixty-four".

Divisors: 1 2 4 8 13 26 29 52 58 104 116 232 377 479 754 958 1508 1916 3016 3832 6227 12454 13891 24908 27782 49816 55564 111128 180583 361166 722332 1444664