18690352 has 20 divisors (see below), whose sum is σ = 37787760. Its totient is φ = 8938688.

The previous prime is 18690341. The next prime is 18690377. The reversal of 18690352 is 25309681.

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, 25027 + ... + 25762.

It is an arithmetic number, because the mean of its divisors is an integer number (1889388).

Almost surely, 2^18690352 is an apocalyptic number.

It is an amenable number.

18690352 is an abundant number, since it is smaller than the sum of its proper divisors (19097408).

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

18690352 is a wasteful number, since it uses less digits than its factorization.

18690352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50820 (or 50814 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 18690352 is about 4323.2339747000. The cubic root of 18690352 is about 265.3826298873.

The spelling of 18690352 in words is "eighteen million, six hundred ninety thousand, three hundred fifty-two".