18824272 has 20 divisors (see below), whose sum is σ = 36560160. Its totient is φ = 9389408.

The previous prime is 18824263. The next prime is 18824293. The reversal of 18824272 is 27242881.

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, 6879 + ... + 9217.

It is an arithmetic number, because the mean of its divisors is an integer number (1828008).

Almost surely, 2^18824272 is an apocalyptic number.

It is an amenable number.

18824272 is a deficient number, since it is larger than the sum of its proper divisors (17735888).

18824272 is a wasteful number, since it uses less digits than its factorization.

18824272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850 (or 2844 counting only the distinct ones).

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

The square root of 18824272 is about 4338.6947345947. The cubic root of 18824272 is about 266.0149613760.

The spelling of 18824272 in words is "eighteen million, eight hundred twenty-four thousand, two hundred seventy-two".