326889984 has 160 divisors (see below), whose sum is σ = 958510080. Its totient is φ = 98537472.

The previous prime is 326889977. The next prime is 326889989. The reversal of 326889984 is 489988623.

326889984 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326889989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670989 + ... + 671475.

It is an arithmetic number, because the mean of its divisors is an integer number (5990688).

Almost surely, 2^326889984 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 326889984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479255040).

326889984 is an abundant number, since it is smaller than the sum of its proper divisors (631620096).

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

326889984 is a wasteful number, since it uses less digits than its factorization.

326889984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 534 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 57.

The square root of 326889984 is about 18080.0991147726. The cubic root of 326889984 is about 688.8646061661.

The spelling of 326889984 in words is "three hundred twenty-six million, eight hundred eighty-nine thousand, nine hundred eighty-four".