18874032 has 20 divisors (see below), whose sum is σ = 48758040. Its totient is φ = 6291328.

The previous prime is 18874021. The next prime is 18874039. The reversal of 18874032 is 23047881.

It is a junction number, because it is equal to n+sod(n) for n = 18873984 and 18874002.

It is not an unprimeable number, because it can be changed into a prime (18874039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196557 + ... + 196652.

It is an arithmetic number, because the mean of its divisors is an integer number (2437902).

Almost surely, 2^18874032 is an apocalyptic number.

18874032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18874032 is an abundant number, since it is smaller than the sum of its proper divisors (29884008).

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

18874032 is a wasteful number, since it uses less digits than its factorization.

18874032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393220 (or 393214 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 18874032 is about 4344.4253935360. The cubic root of 18874032 is about 266.2491494165.

Subtracting 18874032 from its reverse (23047881), we obtain a square (4173849 = 2043²).

The spelling of 18874032 in words is "eighteen million, eight hundred seventy-four thousand, thirty-two".