23149056 has 80 divisors (see below), whose sum is σ = 70513344. Its totient is φ = 6610944.

The previous prime is 23149037. The next prime is 23149069. The reversal of 23149056 is 65094132.

It is a super-2 number, since 2×23149056² = 1071757587382272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9676 + ... + 11828.

Almost surely, 2^23149056 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 23149056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35256672).

23149056 is an abundant number, since it is smaller than the sum of its proper divisors (47364288).

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

23149056 is an equidigital number, since it uses as much as digits as its factorization.

23149056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181 (or 2165 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 23149056 is about 4811.3465890538. The cubic root of 23149056 is about 284.9997168357. Note that the first 3 decimals are identical.

The spelling of 23149056 in words is "twenty-three million, one hundred forty-nine thousand, fifty-six".