18498680 has 16 divisors (see below), whose sum is σ = 41622120. Its totient is φ = 7399456.

The previous prime is 18498679. The next prime is 18498713. The reversal of 18498680 is 8689481.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231194 + ... + 231273.

Almost surely, 2^18498680 is an apocalyptic number.

18498680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18498680 is an abundant number, since it is smaller than the sum of its proper divisors (23123440).

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

18498680 is a wasteful number, since it uses less digits than its factorization.

18498680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462478 (or 462474 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 18498680 is about 4301.0091839009. The cubic root of 18498680 is about 264.4723331827.

The spelling of 18498680 in words is "eighteen million, four hundred ninety-eight thousand, six hundred eighty".