18992952 has 48 divisors (see below), whose sum is σ = 56117880. Its totient is φ = 5755200.

The previous prime is 18992903. The next prime is 18992993. The reversal of 18992952 is 25929981.

It is a junction number, because it is equal to n+sod(n) for n = 18992898 and 18992907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11199 + ... + 12782.

Almost surely, 2^18992952 is an apocalyptic number.

18992952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18992952 is an abundant number, since it is smaller than the sum of its proper divisors (37124928).

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

18992952 is a wasteful number, since it uses less digits than its factorization.

18992952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24004 (or 23997 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 18992952 is about 4358.0904075065. The cubic root of 18992952 is about 266.8071662393.

It can be divided in two parts, 189929 and 52, that added together give a palindrome (189981).

The spelling of 18992952 in words is "eighteen million, nine hundred ninety-two thousand, nine hundred fifty-two".