620629580 has 48 divisors (see below), whose sum is σ = 1353481920. Its totient is φ = 238764288.

The previous prime is 620629573. The next prime is 620629589. The reversal of 620629580 is 85926026.

620629580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (620629589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158729 + ... + 162591.

It is an arithmetic number, because the mean of its divisors is an integer number (28197540).

Almost surely, 2^620629580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620629580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676740960).

620629580 is an abundant number, since it is smaller than the sum of its proper divisors (732852340).

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

620629580 is a wasteful number, since it uses less digits than its factorization.

620629580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178 (or 4176 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 620629580 is about 24912.4382588297. The cubic root of 620629580 is about 852.9904265274.

The spelling of 620629580 in words is "six hundred twenty million, six hundred twenty-nine thousand, five hundred eighty".