18682074 has 12 divisors (see below), whose sum is σ = 40477866. Its totient is φ = 6227352.

The previous prime is 18682063. The next prime is 18682091. The reversal of 18682074 is 47028681.

It can be written as a sum of positive squares in only one way, i.e., 17766225 + 915849 = 4215^2 + 957^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 518929 + ... + 518964.

Almost surely, 2^18682074 is an apocalyptic number.

18682074 is an abundant number, since it is smaller than the sum of its proper divisors (21795792).

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

18682074 is a wasteful number, since it uses less digits than its factorization.

18682074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037901 (or 1037898 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 18682074 is about 4322.2764835212. The cubic root of 18682074 is about 265.3434445754.

The spelling of 18682074 in words is "eighteen million, six hundred eighty-two thousand, seventy-four".