18479470 has 16 divisors (see below), whose sum is σ = 33607728. Its totient is φ = 7315200.

The previous prime is 18479453. The next prime is 18479477. The reversal of 18479470 is 7497481.

It is a super-2 number, since 2×18479470² = 682981622961800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18479477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8556 + ... + 10495.

It is an arithmetic number, because the mean of its divisors is an integer number (2100483).

Almost surely, 2^18479470 is an apocalyptic number.

18479470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18479470 is a deficient number, since it is larger than the sum of its proper divisors (15128258).

18479470 is a wasteful number, since it uses less digits than its factorization.

18479470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19155.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 18479470 is about 4298.7754070200. The cubic root of 18479470 is about 264.3807541590.

The spelling of 18479470 in words is "eighteen million, four hundred seventy-nine thousand, four hundred seventy".