18839108 has 24 divisors (see below), whose sum is σ = 34843200. Its totient is φ = 8887968.

The previous prime is 18839101. The next prime is 18839123. The reversal of 18839108 is 80193881.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (18839101) 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 7 ways as a sum of consecutive naturals, for example, 36758 + ... + 37266.

It is an arithmetic number, because the mean of its divisors is an integer number (1451800).

Almost surely, 2^18839108 is an apocalyptic number.

It is an amenable number.

18839108 is a deficient number, since it is larger than the sum of its proper divisors (16004092).

18839108 is a wasteful number, since it uses less digits than its factorization.

18839108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019 (or 1017 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 18839108 is about 4340.4041286498. The cubic root of 18839108 is about 266.0848279400.

The spelling of 18839108 in words is "eighteen million, eight hundred thirty-nine thousand, one hundred eight".