18642952 has 16 divisors (see below), whose sum is σ = 36795600. Its totient is φ = 8830800.

The previous prime is 18642941. The next prime is 18642961. The reversal of 18642952 is 25924681.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61174 + ... + 61477.

It is an arithmetic number, because the mean of its divisors is an integer number (2299725).

Almost surely, 2^18642952 is an apocalyptic number.

It is an amenable number.

18642952 is a deficient number, since it is larger than the sum of its proper divisors (18152648).

18642952 is a wasteful number, since it uses less digits than its factorization.

18642952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122676 (or 122672 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 18642952 is about 4317.7484873485. The cubic root of 18642952 is about 265.1580971888.

The spelling of 18642952 in words is "eighteen million, six hundred forty-two thousand, nine hundred fifty-two".