23257008 has 30 divisors (see below), whose sum is σ = 65087724. Its totient is φ = 7752288.

The previous prime is 23257001. The next prime is 23257009. The reversal of 23257008 is 80075232.

It is a super-2 number, since 2×23257008² = 1081776842224128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23257001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80610 + ... + 80897.

Almost surely, 2^23257008 is an apocalyptic number.

It is an amenable number.

23257008 is an abundant number, since it is smaller than the sum of its proper divisors (41830716).

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

23257008 is a wasteful number, since it uses less digits than its factorization.

23257008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161521 (or 161512 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 23257008 is about 4822.5520214924. The cubic root of 23257008 is about 285.4420471602.

The spelling of 23257008 in words is "twenty-three million, two hundred fifty-seven thousand, eight".