18312652 has 6 divisors (see below), whose sum is σ = 32047148. Its totient is φ = 9156324.

The previous prime is 18312643. The next prime is 18312673. The reversal of 18312652 is 25621381.

It is a self number, because there is not a number n which added to its sum of digits gives 18312652.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2289078 + ... + 2289085.

Almost surely, 2^18312652 is an apocalyptic number.

It is an amenable number.

18312652 is a deficient number, since it is larger than the sum of its proper divisors (13734496).

18312652 is a wasteful number, since it uses less digits than its factorization.

18312652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4578167 (or 4578165 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 18312652 is about 4279.3284519887. The cubic root of 18312652 is about 263.5828083194.

The spelling of 18312652 in words is "eighteen million, three hundred twelve thousand, six hundred fifty-two".