620368320 has 224 divisors, whose sum is σ = 2314529280. Its totient is φ = 138792960.

The previous prime is 620368289. The next prime is 620368321. The reversal of 620368320 is 23863026.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620368321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135021 + ... + 139539.

It is an arithmetic number, because the mean of its divisors is an integer number (10332720).

Almost surely, 2^620368320 is an apocalyptic number.

620368320 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 620368320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1157264640).

620368320 is an abundant number, since it is smaller than the sum of its proper divisors (1694160960).

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

620368320 is a wasteful number, since it uses less digits than its factorization.

620368320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563 (or 4553 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 620368320 is about 24907.1941414524. The cubic root of 620368320 is about 852.8707182161.

The spelling of 620368320 in words is "six hundred twenty million, three hundred sixty-eight thousand, three hundred twenty".