18384152 has 8 divisors (see below), whose sum is σ = 34470300. Its totient is φ = 9192072.

The previous prime is 18384151. The next prime is 18384181. The reversal of 18384152 is 25148381.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18384151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1149002 + ... + 1149017.

Almost surely, 2^18384152 is an apocalyptic number.

It is an amenable number.

18384152 is a deficient number, since it is larger than the sum of its proper divisors (16086148).

18384152 is a wasteful number, since it uses less digits than its factorization.

18384152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298025 (or 2298021 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 18384152 is about 4287.6744279388. The cubic root of 18384152 is about 263.9254074537.

The spelling of 18384152 in words is "eighteen million, three hundred eighty-four thousand, one hundred fifty-two".