18794980 has 12 divisors (see below), whose sum is σ = 39469500. Its totient is φ = 7517984.

The previous prime is 18794977. The next prime is 18795031. The reversal of 18794980 is 8949781.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11655396 + 7139584 = 3414^2 + 2672^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18794980.

It is an unprimeable number.

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, 469855 + ... + 469894.

It is an arithmetic number, because the mean of its divisors is an integer number (3289125).

Almost surely, 2^18794980 is an apocalyptic number.

18794980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18794980 is an abundant number, since it is smaller than the sum of its proper divisors (20674520).

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

18794980 is a wasteful number, since it uses less digits than its factorization.

18794980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939758 (or 939756 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 18794980 is about 4335.3177507537. The cubic root of 18794980 is about 265.8769099027.

It can be divided in two parts, 1879 and 4980, that added together give a cube (6859 = 19³).

The spelling of 18794980 in words is "eighteen million, seven hundred ninety-four thousand, nine hundred eighty".