18883264 has 56 divisors (see below), whose sum is σ = 40325040. Its totient is φ = 8745984.

The previous prime is 18883259. The next prime is 18883273. The reversal of 18883264 is 46238881.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64302 + ... + 64594.

It is an arithmetic number, because the mean of its divisors is an integer number (720090).

Almost surely, 2^18883264 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 18883264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20162520).

18883264 is an abundant number, since it is smaller than the sum of its proper divisors (21441776).

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

18883264 is a wasteful number, since it uses less digits than its factorization.

18883264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 367 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 18883264 is about 4345.4877746923. The cubic root of 18883264 is about 266.2925531698.

The spelling of 18883264 in words is "eighteen million, eight hundred eighty-three thousand, two hundred sixty-four".