18828966 has 48 divisors (see below), whose sum is σ = 42163200. Its totient is φ = 5597280.

The previous prime is 18828947. The next prime is 18828977. The reversal of 18828966 is 66982881.

Its product of digits (331776) is a multiple of the sum of its prime divisors (648).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31135 + ... + 31733.

It is an arithmetic number, because the mean of its divisors is an integer number (878400).

Almost surely, 2^18828966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18828966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21081600).

18828966 is an abundant number, since it is smaller than the sum of its proper divisors (23334234).

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

18828966 is a wasteful number, since it uses less digits than its factorization.

18828966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 648 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 18828966 is about 4339.2356469775. The cubic root of 18828966 is about 266.0370706056.

The spelling of 18828966 in words is "eighteen million, eight hundred twenty-eight thousand, nine hundred sixty-six".