18928056 has 64 divisors (see below), whose sum is σ = 54996480. Its totient is φ = 5316480.

The previous prime is 18928043. The next prime is 18928069. The reversal of 18928056 is 65082981.

It is an interprime number because it is at equal distance from previous prime (18928043) and next prime (18928069).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9325 + ... + 11171.

It is an arithmetic number, because the mean of its divisors is an integer number (859320).

Almost surely, 2^18928056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18928056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27498240).

18928056 is an abundant number, since it is smaller than the sum of its proper divisors (36068424).

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

18928056 is a wasteful number, since it uses less digits than its factorization.

18928056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924 (or 1920 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 18928056 is about 4350.6385738188. The cubic root of 18928056 is about 266.5029397740.

The spelling of 18928056 in words is "eighteen million, nine hundred twenty-eight thousand, fifty-six".