322289928 has 96 divisors (see below), whose sum is σ = 910946400. Its totient is φ = 106748928.

The previous prime is 322289911. The next prime is 322289953. The reversal of 322289928 is 829982223.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 374763 + ... + 375621.

It is an arithmetic number, because the mean of its divisors is an integer number (9489025).

Almost surely, 2^322289928 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 322289928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455473200).

322289928 is an abundant number, since it is smaller than the sum of its proper divisors (588656472).

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

322289928 is a wasteful number, since it uses less digits than its factorization.

322289928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1057 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 322289928 is about 17952.4351551537. The cubic root of 322289928 is about 685.6180530133.

The spelling of 322289928 in words is "three hundred twenty-two million, two hundred eighty-nine thousand, nine hundred twenty-eight".