18842272 has 24 divisors (see below), whose sum is σ = 37449216. Its totient is φ = 9331392.

The previous prime is 18842269. The next prime is 18842293. The reversal of 18842272 is 27224881.

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, 673 + ... + 6175.

It is an arithmetic number, because the mean of its divisors is an integer number (1560384).

Almost surely, 2^18842272 is an apocalyptic number.

It is an amenable number.

18842272 is a deficient number, since it is larger than the sum of its proper divisors (18606944).

18842272 is a wasteful number, since it uses less digits than its factorization.

18842272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620 (or 5612 counting only the distinct ones).

The product of its digits is 14336, while the sum is 34.

The square root of 18842272 is about 4340.7685955370. The cubic root of 18842272 is about 266.0997232890.

The spelling of 18842272 in words is "eighteen million, eight hundred forty-two thousand, two hundred seventy-two".