321480504 has 96 divisors (see below), whose sum is σ = 887927040. Its totient is φ = 105062400.

The previous prime is 321480503. The next prime is 321480521. The reversal of 321480504 is 405084123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321480503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1333824 + ... + 1334064.

It is an arithmetic number, because the mean of its divisors is an integer number (9249240).

Almost surely, 2^321480504 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 321480504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443963520).

321480504 is an abundant number, since it is smaller than the sum of its proper divisors (566446536).

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

321480504 is a wasteful number, since it uses less digits than its factorization.

321480504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 321480504 is about 17929.8774117393. The cubic root of 321480504 is about 685.0436003292.

The spelling of 321480504 in words is "three hundred twenty-one million, four hundred eighty thousand, five hundred four".