18474806 has 16 divisors (see below), whose sum is σ = 31789824. Its totient is φ = 7888104.

The previous prime is 18474787. The next prime is 18474823. The reversal of 18474806 is 60847481.

It is a self number, because there is not a number n which added to its sum of digits gives 18474806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1631 + ... + 6293.

It is an arithmetic number, because the mean of its divisors is an integer number (1986864).

Almost surely, 2^18474806 is an apocalyptic number.

18474806 is a deficient number, since it is larger than the sum of its proper divisors (13315018).

18474806 is a wasteful number, since it uses less digits than its factorization.

18474806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4955.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 18474806 is about 4298.2328927130. The cubic root of 18474806 is about 264.3585100942.

The spelling of 18474806 in words is "eighteen million, four hundred seventy-four thousand, eight hundred six".