18493368 has 16 divisors (see below), whose sum is σ = 46233480. Its totient is φ = 6164448.

The previous prime is 18493339. The next prime is 18493369. The reversal of 18493368 is 86339481.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18493369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385255 + ... + 385302.

Almost surely, 2^18493368 is an apocalyptic number.

It is an amenable number.

18493368 is an abundant number, since it is smaller than the sum of its proper divisors (27740112).

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

18493368 is a wasteful number, since it uses less digits than its factorization.

18493368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770566 (or 770562 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 18493368 is about 4300.3916100746. The cubic root of 18493368 is about 264.4470158532.

The spelling of 18493368 in words is "eighteen million, four hundred ninety-three thousand, three hundred sixty-eight".