322807680 has 320 divisors, whose sum is σ = 1244073600. Its totient is φ = 79294464.

The previous prime is 322807673. The next prime is 322807699. The reversal of 322807680 is 86708223.

It is a happy number.

322807680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 673681 + ... + 674159.

It is an arithmetic number, because the mean of its divisors is an integer number (3887730).

Almost surely, 2^322807680 is an apocalyptic number.

322807680 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 322807680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622036800).

322807680 is an abundant number, since it is smaller than the sum of its proper divisors (921265920).

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

322807680 is a wasteful number, since it uses less digits than its factorization.

322807680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 322807680 is about 17966.8494734052. The cubic root of 322807680 is about 685.9850002528.

The spelling of 322807680 in words is "three hundred twenty-two million, eight hundred seven thousand, six hundred eighty".