620781260 has 24 divisors (see below), whose sum is σ = 1422153936. Its totient is φ = 225738560.

The previous prime is 620781199. The next prime is 620781277. The reversal of 620781260 is 62187026.

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, 1410647 + ... + 1411086.

It is an arithmetic number, because the mean of its divisors is an integer number (59256414).

Almost surely, 2^620781260 is an apocalyptic number.

It is an amenable number.

620781260 is an abundant number, since it is smaller than the sum of its proper divisors (801372676).

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

620781260 is a wasteful number, since it uses less digits than its factorization.

620781260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821753 (or 2821751 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 620781260 is about 24915.4823352870. The cubic root of 620781260 is about 853.0599102975.

The spelling of 620781260 in words is "six hundred twenty million, seven hundred eighty-one thousand, two hundred sixty".