23015456 has 24 divisors (see below), whose sum is σ = 47283264. Its totient is φ = 11007040.

The previous prime is 23015429. The next prime is 23015491. The reversal of 23015456 is 65451032.

It is a super-2 number, since 2×23015456² = 1059422429775872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14900 + ... + 16371.

It is an arithmetic number, because the mean of its divisors is an integer number (1970136).

Almost surely, 2^23015456 is an apocalyptic number.

It is an amenable number.

23015456 is an abundant number, since it is smaller than the sum of its proper divisors (24267808).

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

23015456 is a wasteful number, since it uses less digits than its factorization.

23015456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31304 (or 31296 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 23015456 is about 4797.4426520804. The cubic root of 23015456 is about 284.4503863414.

Adding to 23015456 its reverse (65451032), we get a palindrome (88466488).

The spelling of 23015456 in words is "twenty-three million, fifteen thousand, four hundred fifty-six".