18340368 has 40 divisors (see below), whose sum is σ = 47663616. Its totient is φ = 6076800.

The previous prime is 18340349. The next prime is 18340369. The reversal of 18340368 is 86304381.

It is not an unprimeable number, because it can be changed into a prime (18340369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7633 + ... + 9743.

Almost surely, 2^18340368 is an apocalyptic number.

It is an amenable number.

18340368 is an abundant number, since it is smaller than the sum of its proper divisors (29323248).

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

18340368 is a wasteful number, since it uses less digits than its factorization.

18340368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303 (or 2297 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 18340368 is about 4282.5655861878. The cubic root of 18340368 is about 263.7157178625.

The spelling of 18340368 in words is "eighteen million, three hundred forty thousand, three hundred sixty-eight".