18739084 has 24 divisors (see below), whose sum is σ = 40361888. Its totient is φ = 7413120.

The previous prime is 18739081. The next prime is 18739087. The reversal of 18739084 is 48093781.

It is an interprime number because it is at equal distance from previous prime (18739081) and next prime (18739087).

It is not an unprimeable number, because it can be changed into a prime (18739081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25377 + ... + 26104.

Almost surely, 2^18739084 is an apocalyptic number.

18739084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18739084 is an abundant number, since it is smaller than the sum of its proper divisors (21622804).

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

18739084 is a wasteful number, since it uses less digits than its factorization.

18739084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51505 (or 51503 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 18739084 is about 4328.8663643037. The cubic root of 18739084 is about 265.6130768166.

The spelling of 18739084 in words is "eighteen million, seven hundred thirty-nine thousand, eighty-four".