322052640 has 384 divisors, whose sum is σ = 1278208512. Its totient is φ = 66355200.

The previous prime is 322052639. The next prime is 322052651. The reversal of 322052640 is 46250223.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 322052640.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3188590 + ... + 3188690.

It is an arithmetic number, because the mean of its divisors is an integer number (3328668).

Almost surely, 2^322052640 is an apocalyptic number.

322052640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322052640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (639104256).

322052640 is an abundant number, since it is smaller than the sum of its proper divisors (956155872).

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

322052640 is a wasteful number, since it uses less digits than its factorization.

322052640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 322052640 is about 17945.8251412411. The cubic root of 322052640 is about 685.4497481572.

The spelling of 322052640 in words is "three hundred twenty-two million, fifty-two thousand, six hundred forty".