23709402 has 16 divisors (see below), whose sum is σ = 52687680. Its totient is φ = 7903116.

The previous prime is 23709379. The next prime is 23709421. The reversal of 23709402 is 20490732.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 219478 + ... + 219585.

It is an arithmetic number, because the mean of its divisors is an integer number (3292980).

Almost surely, 2^23709402 is an apocalyptic number.

23709402 is an abundant number, since it is smaller than the sum of its proper divisors (28978278).

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

23709402 is a wasteful number, since it uses less digits than its factorization.

23709402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439074 (or 439068 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 23709402 is about 4869.2301239518. The cubic root of 23709402 is about 287.2809754652.

The spelling of 23709402 in words is "twenty-three million, seven hundred nine thousand, four hundred two".