18748712 has 8 divisors (see below), whose sum is σ = 35153850. Its totient is φ = 9374352.

The previous prime is 18748699. The next prime is 18748727. The reversal of 18748712 is 21784781.

It can be written as a sum of positive squares in only one way, i.e., 18267076 + 481636 = 4274^2 + 694^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1171787 + ... + 1171802.

Almost surely, 2^18748712 is an apocalyptic number.

It is an amenable number.

18748712 is a deficient number, since it is larger than the sum of its proper divisors (16405138).

18748712 is a wasteful number, since it uses less digits than its factorization.

18748712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343595 (or 2343591 counting only the distinct ones).

The product of its digits is 25088, while the sum is 38.

The square root of 18748712 is about 4329.9782909387. The cubic root of 18748712 is about 265.6585590264.

The spelling of 18748712 in words is "eighteen million, seven hundred forty-eight thousand, seven hundred twelve".