23904256 has 30 divisors (see below), whose sum is σ = 47839820. Its totient is φ = 11943936.

The previous prime is 23904241. The next prime is 23904277. The reversal of 23904256 is 65240932.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655 + ... + 17113.

Almost surely, 2^23904256 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 23904256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23919910).

23904256 is an abundant number, since it is smaller than the sum of its proper divisors (23935564).

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

23904256 is an frugal number, since it uses more digits than its factorization.

23904256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 23904256 is about 4889.1978892248. The cubic root of 23904256 is about 288.0658285737.

The spelling of 23904256 in words is "twenty-three million, nine hundred four thousand, two hundred fifty-six".