23155456 has 36 divisors (see below), whose sum is σ = 47829600. Its totient is φ = 11174912.

The previous prime is 23155373. The next prime is 23155463. The reversal of 23155456 is 65455132.

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, 5865 + ... + 8983.

It is an arithmetic number, because the mean of its divisors is an integer number (1328600).

Almost surely, 2^23155456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23155456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23914800).

23155456 is an abundant number, since it is smaller than the sum of its proper divisors (24674144).

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

23155456 is an equidigital number, since it uses as much as digits as its factorization.

23155456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164 (or 3150 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 23155456 is about 4812.0116375587. The cubic root of 23155456 is about 285.0259789594.

The spelling of 23155456 in words is "twenty-three million, one hundred fifty-five thousand, four hundred fifty-six".