18752664 has 32 divisors (see below), whose sum is σ = 53579520. Its totient is φ = 5357856.

The previous prime is 18752663. The next prime is 18752711. The reversal of 18752664 is 46625781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18752663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55644 + ... + 55979.

It is an arithmetic number, because the mean of its divisors is an integer number (1674360).

Almost surely, 2^18752664 is an apocalyptic number.

18752664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18752664 is an abundant number, since it is smaller than the sum of its proper divisors (34826856).

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

18752664 is a wasteful number, since it uses less digits than its factorization.

18752664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111639 (or 111635 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 18752664 is about 4330.4346202200. The cubic root of 18752664 is about 265.6772235773.

The spelling of 18752664 in words is "eighteen million, seven hundred fifty-two thousand, six hundred sixty-four".