23256880 has 20 divisors (see below), whose sum is σ = 54072432. Its totient is φ = 9302720.

The previous prime is 23256829. The next prime is 23256899. The reversal of 23256880 is 8865232.

It is a tau number, because it is divible by the number of its divisors (20).

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, 145276 + ... + 145435.

Almost surely, 2^23256880 is an apocalyptic number.

23256880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23256880 is an abundant number, since it is smaller than the sum of its proper divisors (30815552).

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

23256880 is a wasteful number, since it uses less digits than its factorization.

23256880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290724 (or 290718 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 23256880 is about 4822.5387504923. The cubic root of 23256880 is about 285.4415234951.

The spelling of 23256880 in words is "twenty-three million, two hundred fifty-six thousand, eight hundred eighty".