18652940 has 12 divisors (see below), whose sum is σ = 39171216. Its totient is φ = 7461168.

The previous prime is 18652919. The next prime is 18652951. The reversal of 18652940 is 4925681.

It is a self number, because there is not a number n which added to its sum of digits gives 18652940.

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, 466304 + ... + 466343.

It is an arithmetic number, because the mean of its divisors is an integer number (3264268).

Almost surely, 2^18652940 is an apocalyptic number.

18652940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18652940 is an abundant number, since it is smaller than the sum of its proper divisors (20518276).

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

18652940 is a wasteful number, since it uses less digits than its factorization.

18652940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932656 (or 932654 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 18652940 is about 4318.9049538048. The cubic root of 18652940 is about 265.2054417340.

The spelling of 18652940 in words is "eighteen million, six hundred fifty-two thousand, nine hundred forty".