18572716 has 12 divisors (see below), whose sum is σ = 32586120. Its totient is φ = 9262400.

The previous prime is 18572699. The next prime is 18572717. The reversal of 18572716 is 61727581.

It is not an unprimeable number, because it can be changed into a prime (18572717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4186 + ... + 7393.

It is an arithmetic number, because the mean of its divisors is an integer number (2715510).

Almost surely, 2^18572716 is an apocalyptic number.

It is an amenable number.

18572716 is a deficient number, since it is larger than the sum of its proper divisors (14013404).

18572716 is a wasteful number, since it uses less digits than its factorization.

18572716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11984 (or 11982 counting only the distinct ones).

The product of its digits is 23520, while the sum is 37.

The square root of 18572716 is about 4309.6074067135. The cubic root of 18572716 is about 264.8246900306.

The spelling of 18572716 in words is "eighteen million, five hundred seventy-two thousand, seven hundred sixteen".