620716320 has 432 divisors, whose sum is σ = 2599309440. Its totient is φ = 134120448.

The previous prime is 620716307. The next prime is 620716363. The reversal of 620716320 is 23617026.

It is a happy number.

620716320 is a `hidden beast` number, since 6 + 20 + 7 + 1 + 632 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1340409 + ... + 1340871.

It is an arithmetic number, because the mean of its divisors is an integer number (6016920).

Almost surely, 2^620716320 is an apocalyptic number.

620716320 is a gapful number since it is divisible by the number (60) 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 620716320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299654720).

620716320 is an abundant number, since it is smaller than the sum of its proper divisors (1978593120).

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

620716320 is a wasteful number, since it uses less digits than its factorization.

620716320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 620716320 is about 24914.1790954468. The cubic root of 620716320 is about 853.0301630279.

The spelling of 620716320 in words is "six hundred twenty million, seven hundred sixteen thousand, three hundred twenty".