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1224330 = 235371103
BaseRepresentation
bin100101010111010001010
32022012110120
410222322022
5303134310
642124110
713256322
oct4527212
92265416
101224330
11766948
124b0636
1333b373
1423c282
15192b70
hex12ae8a

1224330 has 32 divisors (see below), whose sum is σ = 3020544. Its totient is φ = 317376.

The previous prime is 1224329. The next prime is 1224337. The reversal of 1224330 is 334221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559 + ... + 1661.

It is an arithmetic number, because the mean of its divisors is an integer number (94392).

21224330 is an apocalyptic number.

1224330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1510272).

1224330 is an abundant number, since it is smaller than the sum of its proper divisors (1796214).

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

1224330 is a wasteful number, since it uses less digits than its factorization.

1224330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1224330 is about 1106.4944645139. The cubic root of 1224330 is about 106.9792372443.

Adding to 1224330 its reverse (334221), we get a palindrome (1558551).

It can be divided in two parts, 12 and 24330, that added together give a palindrome (24342).

The spelling of 1224330 in words is "one million, two hundred twenty-four thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 555 1103 1110 2206 3309 5515 6618 11030 16545 33090 40811 81622 122433 204055 244866 408110 612165 1224330