18479982 has 16 divisors (see below), whose sum is σ = 37031760. Its totient is φ = 6148032.

The previous prime is 18479959. The next prime is 18480001. The reversal of 18479982 is 28997481.

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, 708 + ... + 6120.

It is an arithmetic number, because the mean of its divisors is an integer number (2314485).

Almost surely, 2^18479982 is an apocalyptic number.

18479982 is an abundant number, since it is smaller than the sum of its proper divisors (18551778).

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

18479982 is a wasteful number, since it uses less digits than its factorization.

18479982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5987.

The product of its digits is 290304, while the sum is 48.

The square root of 18479982 is about 4298.8349584510. The cubic root of 18479982 is about 264.3831958181.

The spelling of 18479982 in words is "eighteen million, four hundred seventy-nine thousand, nine hundred eighty-two".