620677520 has 40 divisors (see below), whose sum is σ = 1452296184. Its totient is φ = 246684672.

The previous prime is 620677507. The next prime is 620677543. The reversal of 620677520 is 25776026.

It is a happy number.

620677520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 142468096 + 478209424 = 11936^2 + 21868^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 12149 + ... + 37268.

Almost surely, 2^620677520 is an apocalyptic number.

It is an amenable number.

620677520 is an abundant number, since it is smaller than the sum of its proper divisors (831618664).

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

620677520 is a wasteful number, since it uses less digits than its factorization.

620677520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49587 (or 49581 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 620677520 is about 24913.4004102210. The cubic root of 620677520 is about 853.0123888000.

The spelling of 620677520 in words is "six hundred twenty million, six hundred seventy-seven thousand, five hundred twenty".