23009256 has 48 divisors (see below), whose sum is σ = 62577060. Its totient is φ = 7637760.

The previous prime is 23009219. The next prime is 23009291. The reversal of 23009256 is 65290032.

It can be written as a sum of positive squares in 2 ways, for example, as 20848356 + 2160900 = 4566^2 + 1470^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22026 + ... + 23046.

Almost surely, 2^23009256 is an apocalyptic number.

It is an amenable number.

23009256 is an abundant number, since it is smaller than the sum of its proper divisors (39567804).

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

23009256 is a wasteful number, since it uses less digits than its factorization.

23009256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 23009256 is about 4796.7964309526. The cubic root of 23009256 is about 284.4248419018.

Adding to 23009256 its reverse (65290032), we get a palindrome (88299288).

The spelling of 23009256 in words is "twenty-three million, nine thousand, two hundred fifty-six".