18928368 has 30 divisors (see below), whose sum is σ = 52973544. Its totient is φ = 6309408.

The previous prime is 18928339. The next prime is 18928369. The reversal of 18928368 is 86382981.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18928369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65580 + ... + 65867.

Almost surely, 2^18928368 is an apocalyptic number.

18928368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18928368 is an abundant number, since it is smaller than the sum of its proper divisors (34045176).

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

18928368 is a wasteful number, since it uses less digits than its factorization.

18928368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131461 (or 131452 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 18928368 is about 4350.6744304763. The cubic root of 18928368 is about 266.5044040635.

The spelling of 18928368 in words is "eighteen million, nine hundred twenty-eight thousand, three hundred sixty-eight".