23281256 has 16 divisors (see below), whose sum is σ = 43748640. Its totient is φ = 11614960.

The previous prime is 23281241. The next prime is 23281301. The reversal of 23281256 is 65218232.

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 3 ways as a sum of consecutive naturals, for example, 965 + ... + 6891.

It is an arithmetic number, because the mean of its divisors is an integer number (2734290).

Almost surely, 2^23281256 is an apocalyptic number.

It is an amenable number.

23281256 is a deficient number, since it is larger than the sum of its proper divisors (20467384).

23281256 is a wasteful number, since it uses less digits than its factorization.

23281256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6424 (or 6420 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 23281256 is about 4825.0653881580. The cubic root of 23281256 is about 285.5412143261.

Adding to 23281256 its reverse (65218232), we get a palindrome (88499488).

The spelling of 23281256 in words is "twenty-three million, two hundred eighty-one thousand, two hundred fifty-six".