620889160 has 32 divisors (see below), whose sum is σ = 1397820600. Its totient is φ = 248209920.

The previous prime is 620889149. The next prime is 620889161. The reversal of 620889160 is 61988026.

It can be written as a sum of positive squares in 4 ways, for example, as 413471556 + 207417604 = 20334^2 + 14402^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (620889161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87340 + ... + 94180.

Almost surely, 2^620889160 is an apocalyptic number.

It is an amenable number.

620889160 is an abundant number, since it is smaller than the sum of its proper divisors (776931440).

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

620889160 is a wasteful number, since it uses less digits than its factorization.

620889160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9121 (or 9117 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 620889160 is about 24917.6475615175. The cubic root of 620889160 is about 853.1093318022.

The spelling of 620889160 in words is "six hundred twenty million, eight hundred eighty-nine thousand, one hundred sixty".