23404256 has 24 divisors (see below), whose sum is σ = 47565504. Its totient is φ = 11324160.

The previous prime is 23404237. The next prime is 23404273. The reversal of 23404256 is 65240432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10805 + ... + 12788.

It is an arithmetic number, because the mean of its divisors is an integer number (1981896).

Almost surely, 2^23404256 is an apocalyptic number.

It is an amenable number.

23404256 is an abundant number, since it is smaller than the sum of its proper divisors (24161248).

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

23404256 is a wasteful number, since it uses less digits than its factorization.

23404256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23634 (or 23626 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 23404256 is about 4837.7945388369. The cubic root of 23404256 is about 286.0431903736.

Adding to 23404256 its reverse (65240432), we get a palindrome (88644688).

The spelling of 23404256 in words is "twenty-three million, four hundred four thousand, two hundred fifty-six".