18479446 has 8 divisors (see below), whose sum is σ = 27755784. Its totient is φ = 9227520.

The previous prime is 18479431. The next prime is 18479453. The reversal of 18479446 is 64497481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4075 + ... + 7318.

It is an arithmetic number, because the mean of its divisors is an integer number (3469473).

Almost surely, 2^18479446 is an apocalyptic number.

18479446 is a deficient number, since it is larger than the sum of its proper divisors (9276338).

18479446 is a wasteful number, since it uses less digits than its factorization.

18479446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12206.

The product of its digits is 193536, while the sum is 43.

The square root of 18479446 is about 4298.7726155264. The cubic root of 18479446 is about 264.3806397052.

The spelling of 18479446 in words is "eighteen million, four hundred seventy-nine thousand, four hundred forty-six".