18672152 has 8 divisors (see below), whose sum is σ = 35010300. Its totient is φ = 9336072.

The previous prime is 18672133. The next prime is 18672187. The reversal of 18672152 is 25127681.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×18672152² = 697298520622208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1167002 + ... + 1167017.

Almost surely, 2^18672152 is an apocalyptic number.

It is an amenable number.

18672152 is a deficient number, since it is larger than the sum of its proper divisors (16338148).

18672152 is a wasteful number, since it uses less digits than its factorization.

18672152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334025 (or 2334021 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 18672152 is about 4321.1285562917. The cubic root of 18672152 is about 265.2964618568.

The spelling of 18672152 in words is "eighteen million, six hundred seventy-two thousand, one hundred fifty-two".