18470944 has 24 divisors (see below), whose sum is σ = 36484560. Its totient is φ = 9205056.

The previous prime is 18470939. The next prime is 18470957. The reversal of 18470944 is 44907481.

It is a super-2 number, since 2×18470944² = 682351544502272, which contains 22 as substring.

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, 11367 + ... + 12889.

It is an arithmetic number, because the mean of its divisors is an integer number (1520190).

Almost surely, 2^18470944 is an apocalyptic number.

It is an amenable number.

18470944 is a deficient number, since it is larger than the sum of its proper divisors (18013616).

18470944 is a wasteful number, since it uses less digits than its factorization.

18470944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912 (or 1904 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 18470944 is about 4297.7836148415. The cubic root of 18470944 is about 264.3400881828.

The spelling of 18470944 in words is "eighteen million, four hundred seventy thousand, nine hundred forty-four".