620474720 has 48 divisors (see below), whose sum is σ = 1516430160. Its totient is φ = 239629824.

The previous prime is 620474693. The next prime is 620474731. The reversal of 620474720 is 27474026.

620474720 is digitally balanced in base 2, 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 (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62222 + ... + 71501.

It is an arithmetic number, because the mean of its divisors is an integer number (31592295).

Almost surely, 2^620474720 is an apocalyptic number.

It is an amenable number.

620474720 is an abundant number, since it is smaller than the sum of its proper divisors (895955440).

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

620474720 is a wasteful number, since it uses less digits than its factorization.

620474720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133767 (or 133759 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 620474720 is about 24909.3299789456. The cubic root of 620474720 is about 852.9194743363.

The spelling of 620474720 in words is "six hundred twenty million, four hundred seventy-four thousand, seven hundred twenty".