18532668 has 96 divisors (see below), whose sum is σ = 55738368. Its totient is φ = 4651200.

The previous prime is 18532651. The next prime is 18532673. The reversal of 18532668 is 86623581.

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 31 ways as a sum of consecutive naturals, for example, 28321 + ... + 28967.

It is an arithmetic number, because the mean of its divisors is an integer number (580608).

Almost surely, 2^18532668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18532668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27869184).

18532668 is an abundant number, since it is smaller than the sum of its proper divisors (37205700).

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

18532668 is a wasteful number, since it uses less digits than its factorization.

18532668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 701 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 18532668 is about 4304.9585363857. The cubic root of 18532668 is about 264.6342075456.

The spelling of 18532668 in words is "eighteen million, five hundred thirty-two thousand, six hundred sixty-eight".