320364720 has 200 divisors, whose sum is σ = 1198579536. Its totient is φ = 78838272.

The previous prime is 320364691. The next prime is 320364761. The reversal of 320364720 is 27463023.

320364720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 82339 + ... + 86141.

Almost surely, 2^320364720 is an apocalyptic number.

320364720 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 320364720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599289768).

320364720 is an abundant number, since it is smaller than the sum of its proper divisors (878214816).

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

320364720 is a wasteful number, since it uses less digits than its factorization.

320364720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841 (or 3826 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 320364720 is about 17898.7351508424. The cubic root of 320364720 is about 684.2501393529.

The spelling of 320364720 in words is "three hundred twenty million, three hundred sixty-four thousand, seven hundred twenty".