320722068 has 48 divisors (see below), whose sum is σ = 813806784. Its totient is φ = 97896960.

The previous prime is 320722021. The next prime is 320722093. The reversal of 320722068 is 860227023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13698 + ... + 28793.

It is an arithmetic number, because the mean of its divisors is an integer number (16954308).

Almost surely, 2^320722068 is an apocalyptic number.

It is an amenable number.

320722068 is an abundant number, since it is smaller than the sum of its proper divisors (493084716).

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

320722068 is a wasteful number, since it uses less digits than its factorization.

320722068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42552 (or 42550 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 320722068 is about 17908.7148617649. The cubic root of 320722068 is about 684.5044584104.

The spelling of 320722068 in words is "three hundred twenty million, seven hundred twenty-two thousand, sixty-eight".