23439956 has 6 divisors (see below), whose sum is σ = 41019930. Its totient is φ = 11719976.

The previous prime is 23439919. The next prime is 23440003. The reversal of 23439956 is 65993432.

It can be written as a sum of positive squares in only one way, i.e., 19096900 + 4343056 = 4370^2 + 2084^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2929991 + ... + 2929998.

It is an arithmetic number, because the mean of its divisors is an integer number (6836655).

Almost surely, 2^23439956 is an apocalyptic number.

It is an amenable number.

23439956 is a deficient number, since it is larger than the sum of its proper divisors (17579974).

23439956 is a wasteful number, since it uses less digits than its factorization.

23439956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5859993 (or 5859991 counting only the distinct ones).

The product of its digits is 174960, while the sum is 41.

The square root of 23439956 is about 4841.4828307038. The cubic root of 23439956 is about 286.1885564427.

The spelling of 23439956 in words is "twenty-three million, four hundred thirty-nine thousand, nine hundred fifty-six".