23184990 has 24 divisors (see below), whose sum is σ = 60281208. Its totient is φ = 6182640.

The previous prime is 23184961. The next prime is 23185003. The reversal of 23184990 is 9948132.

It is a super-2 number, since 2×23184990² = 1075087522600200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128716 + ... + 128895.

It is an arithmetic number, because the mean of its divisors is an integer number (2511717).

Almost surely, 2^23184990 is an apocalyptic number.

23184990 is an abundant number, since it is smaller than the sum of its proper divisors (37096218).

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

23184990 is a wasteful number, since it uses less digits than its factorization.

23184990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257624 (or 257621 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 23184990 is about 4815.0794385970. The cubic root of 23184990 is about 285.1471078035.

The spelling of 23184990 in words is "twenty-three million, one hundred eighty-four thousand, nine hundred ninety".