322480720 has 40 divisors (see below), whose sum is σ = 751217544. Its totient is φ = 128742912.

The previous prime is 322480699. The next prime is 322480727. The reversal of 322480720 is 27084223.

It can be written as a sum of positive squares in 4 ways, for example, as 8340544 + 314140176 = 2888^2 + 17724^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322480727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40942 + ... + 48178.

Almost surely, 2^322480720 is an apocalyptic number.

It is an amenable number.

322480720 is an abundant number, since it is smaller than the sum of its proper divisors (428736824).

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

322480720 is a wasteful number, since it uses less digits than its factorization.

322480720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7807 (or 7801 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 322480720 is about 17957.7481884561. The cubic root of 322480720 is about 685.7533190413.

The spelling of 322480720 in words is "three hundred twenty-two million, four hundred eighty thousand, seven hundred twenty".