18479274 has 32 divisors (see below), whose sum is σ = 41307840. Its totient is φ = 5462400.

The previous prime is 18479269. The next prime is 18479291. The reversal of 18479274 is 47297481.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 709 + ... + 6120.

It is an arithmetic number, because the mean of its divisors is an integer number (1290870).

Almost surely, 2^18479274 is an apocalyptic number.

18479274 is an abundant number, since it is smaller than the sum of its proper divisors (22828566).

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

18479274 is a wasteful number, since it uses less digits than its factorization.

18479274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886.

The product of its digits is 112896, while the sum is 42.

The square root of 18479274 is about 4298.7526097695. The cubic root of 18479274 is about 264.3798194495.

The spelling of 18479274 in words is "eighteen million, four hundred seventy-nine thousand, two hundred seventy-four".