18884964 has 48 divisors (see below), whose sum is σ = 50577408. Its totient is φ = 5372448.

The previous prime is 18884959. The next prime is 18884981. The reversal of 18884964 is 46948881.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 31879 + ... + 32465.

It is an arithmetic number, because the mean of its divisors is an integer number (1053696).

Almost surely, 2^18884964 is an apocalyptic number.

18884964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18884964 is an abundant number, since it is smaller than the sum of its proper divisors (31692444).

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

18884964 is a wasteful number, since it uses less digits than its factorization.

18884964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 982 counting only the distinct ones).

The product of its digits is 442368, while the sum is 48.

The square root of 18884964 is about 4345.6833754888. The cubic root of 18884964 is about 266.3005440863.

The spelling of 18884964 in words is "eighteen million, eight hundred eighty-four thousand, nine hundred sixty-four".