322708640 has 48 divisors (see below), whose sum is σ = 765654120. Its totient is φ = 128532480.

The previous prime is 322708619. The next prime is 322708681. The reversal of 322708640 is 46807223.

322708640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 307932304 + 14776336 = 17548^2 + 3844^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 322708597 and 322708606.

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 7 ways as a sum of consecutive naturals, for example, 34376 + ... + 42744.

Almost surely, 2^322708640 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 322708640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382827060).

322708640 is an abundant number, since it is smaller than the sum of its proper divisors (442945480).

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

322708640 is a wasteful number, since it uses less digits than its factorization.

322708640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8625 (or 8617 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 322708640 is about 17964.0930747978. The cubic root of 322708640 is about 685.9148378331.

The spelling of 322708640 in words is "three hundred twenty-two million, seven hundred eight thousand, six hundred forty".