23490288 has 30 divisors (see below), whose sum is σ = 65740584. Its totient is φ = 7830048.

The previous prime is 23490241. The next prime is 23490329. The reversal of 23490288 is 88209432.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81420 + ... + 81707.

Almost surely, 2^23490288 is an apocalyptic number.

It is an amenable number.

23490288 is an abundant number, since it is smaller than the sum of its proper divisors (42250296).

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

23490288 is a wasteful number, since it uses less digits than its factorization.

23490288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163141 (or 163132 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 23490288 is about 4846.6780375841. The cubic root of 23490288 is about 286.3932517162.

The spelling of 23490288 in words is "twenty-three million, four hundred ninety thousand, two hundred eighty-eight".