18012532 has 24 divisors (see below), whose sum is σ = 33566400. Its totient is φ = 8433216.

The previous prime is 18012499. The next prime is 18012541. The reversal of 18012532 is 23521081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5433 + ... + 8095.

It is an arithmetic number, because the mean of its divisors is an integer number (1398600).

Almost surely, 2^18012532 is an apocalyptic number.

It is an amenable number.

18012532 is a deficient number, since it is larger than the sum of its proper divisors (15553868).

18012532 is a wasteful number, since it uses less digits than its factorization.

18012532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 18012532 is about 4244.1173405079. The cubic root of 18012532 is about 262.1349459247.

The spelling of 18012532 in words is "eighteen million, twelve thousand, five hundred thirty-two".