23155302 has 32 divisors (see below), whose sum is σ = 47688192. Its totient is φ = 7491744.

The previous prime is 23155289. The next prime is 23155313. The reversal of 23155302 is 20355132.

It is a super-2 number, since 2×23155302² = 1072336021422408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44013 + ... + 44535.

It is an arithmetic number, because the mean of its divisors is an integer number (1490256).

Almost surely, 2^23155302 is an apocalyptic number.

23155302 is an abundant number, since it is smaller than the sum of its proper divisors (24532890).

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

23155302 is a wasteful number, since it uses less digits than its factorization.

23155302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 23155302 is about 4811.9956359082. The cubic root of 23155302 is about 285.0253470839.

The spelling of 23155302 in words is "twenty-three million, one hundred fifty-five thousand, three hundred two".