18928108 has 6 divisors (see below), whose sum is σ = 33124196. Its totient is φ = 9464052.

The previous prime is 18928069. The next prime is 18928109. The reversal of 18928108 is 80182981.

It is not an unprimeable number, because it can be changed into a prime (18928109) 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 as a sum of consecutive naturals, namely, 2366010 + ... + 2366017.

Almost surely, 2^18928108 is an apocalyptic number.

It is an amenable number.

18928108 is a deficient number, since it is larger than the sum of its proper divisors (14196088).

18928108 is a wasteful number, since it uses less digits than its factorization.

18928108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732031 (or 4732029 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 18928108 is about 4350.6445499489. The cubic root of 18928108 is about 266.5031838234.

It can be divided in two parts, 1892 and 8108, that added together give a 4-th power (10000 = 10⁴).

The spelling of 18928108 in words is "eighteen million, nine hundred twenty-eight thousand, one hundred eight".