18952224 has 24 divisors (see below), whose sum is σ = 49749840. Its totient is φ = 6317376.

The previous prime is 18952211. The next prime is 18952267. The reversal of 18952224 is 42225981.

It is a tau number, because it is divible by the number of its divisors (24).

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, 98614 + ... + 98805.

It is an arithmetic number, because the mean of its divisors is an integer number (2072910).

Almost surely, 2^18952224 is an apocalyptic number.

It is an amenable number.

18952224 is an abundant number, since it is smaller than the sum of its proper divisors (30797616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18952224 is a wasteful number, since it uses less digits than its factorization.

18952224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197432 (or 197424 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 18952224 is about 4353.4152110728. The cubic root of 18952224 is about 266.6163182723.

The spelling of 18952224 in words is "eighteen million, nine hundred fifty-two thousand, two hundred twenty-four".