620297760 has 96 divisors (see below), whose sum is σ = 1957919040. Its totient is φ = 165075968.

The previous prime is 620297749. The next prime is 620297773. The reversal of 620297760 is 67792026.

620297760 is digitally balanced in base 2, 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 (96).

It is a super-2 number, since 2×620297760² = 769538622122035200, which contains 22 as substring.

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, 312451 + ... + 314429.

It is an arithmetic number, because the mean of its divisors is an integer number (20394990).

Almost surely, 2^620297760 is an apocalyptic number.

620297760 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 620297760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (978959520).

620297760 is an abundant number, since it is smaller than the sum of its proper divisors (1337621280).

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

620297760 is a wasteful number, since it uses less digits than its factorization.

620297760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650 (or 2642 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 620297760 is about 24905.7776429486. Note that the first 3 decimals coincide. The cubic root of 620297760 is about 852.8383821358.

The spelling of 620297760 in words is "six hundred twenty million, two hundred ninety-seven thousand, seven hundred sixty".