322403328 has 330 divisors, whose sum is σ = 1087841304. Its totient is φ = 94887936.

The previous prime is 322403327. The next prime is 322403339. The reversal of 322403328 is 823304223.

322403328 is a `hidden beast` number, since 322 + 4 + 0 + 332 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322403327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 14017525 + ... + 14017547.

Almost surely, 2^322403328 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 322403328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543920652).

322403328 is an abundant number, since it is smaller than the sum of its proper divisors (765437976).

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

322403328 is a wasteful number, since it uses less digits than its factorization.

322403328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 322403328 is about 17955.5932232828. The cubic root of 322403328 is about 685.6984567775.

The spelling of 322403328 in words is "three hundred twenty-two million, four hundred three thousand, three hundred twenty-eight".