18474906 has 16 divisors (see below), whose sum is σ = 37576800. Its totient is φ = 6053808.

The previous prime is 18474889. The next prime is 18474917. The reversal of 18474906 is 60947481.

It is a happy 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, 25741 + ... + 26448.

It is an arithmetic number, because the mean of its divisors is an integer number (2348550).

Almost surely, 2^18474906 is an apocalyptic number.

18474906 is an abundant number, since it is smaller than the sum of its proper divisors (19101894).

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

18474906 is a wasteful number, since it uses less digits than its factorization.

18474906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52253.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 18474906 is about 4298.2445253848. The cubic root of 18474906 is about 264.3589870645.

The spelling of 18474906 in words is "eighteen million, four hundred seventy-four thousand, nine hundred six".