18340536 has 16 divisors (see below), whose sum is σ = 45851400. Its totient is φ = 6113504.

The previous prime is 18340523. The next prime is 18340547. The reversal of 18340536 is 63504381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382071 + ... + 382118.

Almost surely, 2^18340536 is an apocalyptic number.

It is an amenable number.

18340536 is an abundant number, since it is smaller than the sum of its proper divisors (27510864).

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

18340536 is a wasteful number, since it uses less digits than its factorization.

18340536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764198 (or 764194 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 18340536 is about 4282.5852005535. The cubic root of 18340536 is about 263.7165230827.

The spelling of 18340536 in words is "eighteen million, three hundred forty thousand, five hundred thirty-six".