680408480 has 24 divisors (see below), whose sum is σ = 1607465412. Its totient is φ = 272163328.

The previous prime is 680408453. The next prime is 680408497. The reversal of 680408480 is 84804086.

It can be written as a sum of positive squares in 2 ways, for example, as 668325904 + 12082576 = 25852^2 + 3476^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2126117 + ... + 2126436.

Almost surely, 2^680408480 is an apocalyptic number.

It is an amenable number.

680408480 is an abundant number, since it is smaller than the sum of its proper divisors (927056932).

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

680408480 is a wasteful number, since it uses less digits than its factorization.

680408480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252568 (or 4252560 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 680408480 is about 26084.6406914107. The cubic root of 680408480 is about 879.5419792825.

The spelling of 680408480 in words is "six hundred eighty million, four hundred eight thousand, four hundred eighty".