18485684 has 48 divisors (see below), whose sum is σ = 38330880. Its totient is φ = 7637760.

The previous prime is 18485671. The next prime is 18485713. The reversal of 18485684 is 48658481.

It is a congruent number.

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, 134864 + ... + 135000.

It is an arithmetic number, because the mean of its divisors is an integer number (798560).

Almost surely, 2^18485684 is an apocalyptic number.

18485684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18485684 is an abundant number, since it is smaller than the sum of its proper divisors (19845196).

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

18485684 is a wasteful number, since it uses less digits than its factorization.

18485684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 286 counting only the distinct ones).

The product of its digits is 245760, while the sum is 44.

The square root of 18485684 is about 4299.4981102450. The cubic root of 18485684 is about 264.4103848410.

The spelling of 18485684 in words is "eighteen million, four hundred eighty-five thousand, six hundred eighty-four".