23264840 has 32 divisors (see below), whose sum is σ = 55426680. Its totient is φ = 8758272.

The previous prime is 23264831. The next prime is 23264861. The reversal of 23264840 is 4846232.

It can be written as a sum of positive squares in 4 ways, for example, as 23020804 + 244036 = 4798^2 + 494^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16427 + ... + 17786.

Almost surely, 2^23264840 is an apocalyptic number.

23264840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23264840 is an abundant number, since it is smaller than the sum of its proper divisors (32161840).

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

23264840 is a wasteful number, since it uses less digits than its factorization.

23264840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34241 (or 34237 counting only the distinct ones).

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

The square root of 23264840 is about 4823.3639713378. The cubic root of 23264840 is about 285.4740852625.

The spelling of 23264840 in words is "twenty-three million, two hundred sixty-four thousand, eight hundred forty".