328564480 has 72 divisors (see below), whose sum is σ = 791616672. Its totient is φ = 130658304.

The previous prime is 328564471. The next prime is 328564487. The reversal of 328564480 is 84465823.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328564487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251509 + ... + 252811.

It is an arithmetic number, because the mean of its divisors is an integer number (10994676).

Almost surely, 2^328564480 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 328564480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395808336).

328564480 is an abundant number, since it is smaller than the sum of its proper divisors (463052192).

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

328564480 is a wasteful number, since it uses less digits than its factorization.

328564480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521 (or 1507 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 328564480 is about 18126.3476740352. The cubic root of 328564480 is about 690.0388411938.

The spelling of 328564480 in words is "three hundred twenty-eight million, five hundred sixty-four thousand, four hundred eighty".