23189404 has 24 divisors (see below), whose sum is σ = 46545408. Its totient is φ = 9902640.

The previous prime is 23189401. The next prime is 23189431. The reversal of 23189404 is 40498132.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23189401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7377 + ... + 10039.

It is an arithmetic number, because the mean of its divisors is an integer number (1939392).

Almost surely, 2^23189404 is an apocalyptic number.

It is an amenable number.

23189404 is an abundant number, since it is smaller than the sum of its proper divisors (23356004).

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

23189404 is a wasteful number, since it uses less digits than its factorization.

23189404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985 (or 2983 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 23189404 is about 4815.5377685156. The cubic root of 23189404 is about 285.1652022613.

The spelling of 23189404 in words is "twenty-three million, one hundred eighty-nine thousand, four hundred four".