18734898 has 32 divisors (see below), whose sum is σ = 46118016. Its totient is φ = 4940928.

The previous prime is 18734879. The next prime is 18734927. The reversal of 18734898 is 89843781.

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, 16611 + ... + 17702.

It is an arithmetic number, because the mean of its divisors is an integer number (1441188).

Almost surely, 2^18734898 is an apocalyptic number.

18734898 is an abundant number, since it is smaller than the sum of its proper divisors (27383118).

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

18734898 is a wasteful number, since it uses less digits than its factorization.

18734898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34338.

The product of its digits is 387072, while the sum is 48.

The square root of 18734898 is about 4328.3828388903. The cubic root of 18734898 is about 265.5932974944.

The spelling of 18734898 in words is "eighteen million, seven hundred thirty-four thousand, eight hundred ninety-eight".