18776072 has 32 divisors (see below), whose sum is σ = 40435200. Its totient is φ = 8006784.

The previous prime is 18776071. The next prime is 18776083. The reversal of 18776072 is 27067781.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18776071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12329 + ... + 13767.

It is an arithmetic number, because the mean of its divisors is an integer number (1263600).

Almost surely, 2^18776072 is an apocalyptic number.

It is an amenable number.

18776072 is an abundant number, since it is smaller than the sum of its proper divisors (21659128).

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

18776072 is a wasteful number, since it uses less digits than its factorization.

18776072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685 (or 1681 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 18776072 is about 4333.1365083505. The cubic root of 18776072 is about 265.7877214179.

The spelling of 18776072 in words is "eighteen million, seven hundred seventy-six thousand, seventy-two".