18518064 has 20 divisors (see below), whose sum is σ = 47838456. Its totient is φ = 6172672.

The previous prime is 18518057. The next prime is 18518069. The reversal of 18518064 is 46081581.

It is not an unprimeable number, because it can be changed into a prime (18518069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192849 + ... + 192944.

Almost surely, 2^18518064 is an apocalyptic number.

It is an amenable number.

18518064 is an abundant number, since it is smaller than the sum of its proper divisors (29320392).

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

18518064 is a wasteful number, since it uses less digits than its factorization.

18518064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385804 (or 385798 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 18518064 is about 4303.2620185157. The cubic root of 18518064 is about 264.5646774675.

The spelling of 18518064 in words is "eighteen million, five hundred eighteen thousand, sixty-four".