18194984 has 16 divisors (see below), whose sum is σ = 34322400. Its totient is φ = 9042352.

The previous prime is 18194963. The next prime is 18194993. The reversal of 18194984 is 48949181.

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, 5474 + ... + 8145.

It is an arithmetic number, because the mean of its divisors is an integer number (2145150).

Almost surely, 2^18194984 is an apocalyptic number.

It is an amenable number.

18194984 is a deficient number, since it is larger than the sum of its proper divisors (16127416).

18194984 is a wasteful number, since it uses less digits than its factorization.

18194984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13792 (or 13788 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 18194984 is about 4265.5578767613. The cubic root of 18194984 is about 263.0170441035.

The spelling of 18194984 in words is "eighteen million, one hundred ninety-four thousand, nine hundred eighty-four".