620518980 has 48 divisors (see below), whose sum is σ = 1761266304. Its totient is φ = 163203840.

The previous prime is 620518979. The next prime is 620518981. The reversal of 620518980 is 89815026.

620518980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (620518979) and next prime (620518981).

It is not an unprimeable number, because it can be changed into a prime (620518981) 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, 66456 + ... + 75215.

It is an arithmetic number, because the mean of its divisors is an integer number (36693048).

Almost surely, 2^620518980 is an apocalyptic number.

620518980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620518980 is an abundant number, since it is smaller than the sum of its proper divisors (1140747324).

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

620518980 is a wasteful number, since it uses less digits than its factorization.

620518980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141756 (or 141754 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 620518980 is about 24910.2183852330. The cubic root of 620518980 is about 852.9397541409.

The spelling of 620518980 in words is "six hundred twenty million, five hundred eighteen thousand, nine hundred eighty".