18590972 has 24 divisors (see below), whose sum is σ = 33927600. Its totient is φ = 8902656.

The previous prime is 18590953. The next prime is 18591019. The reversal of 18590972 is 27909581.

It is a congruent number.

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, 15548 + ... + 16700.

It is an arithmetic number, because the mean of its divisors is an integer number (1413650).

Almost surely, 2^18590972 is an apocalyptic number.

It is an amenable number.

18590972 is a deficient number, since it is larger than the sum of its proper divisors (15336628).

18590972 is a wasteful number, since it uses less digits than its factorization.

18590972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 18590972 is about 4311.7249448452. The cubic root of 18590972 is about 264.9114311825.

The spelling of 18590972 in words is "eighteen million, five hundred ninety thousand, nine hundred seventy-two".