18675660 has 48 divisors (see below), whose sum is σ = 52668000. Its totient is φ = 4944384.

The previous prime is 18675659. The next prime is 18675677. The reversal of 18675660 is 6657681.

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, 7896 + ... + 9984.

It is an arithmetic number, because the mean of its divisors is an integer number (1097250).

Almost surely, 2^18675660 is an apocalyptic number.

18675660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18675660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26334000).

18675660 is an abundant number, since it is smaller than the sum of its proper divisors (33992340).

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

18675660 is a wasteful number, since it uses less digits than its factorization.

18675660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250 (or 2248 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 18675660 is about 4321.5344497065. The cubic root of 18675660 is about 265.3130748627.

The spelling of 18675660 in words is "eighteen million, six hundred seventy-five thousand, six hundred sixty".