680240004 has 24 divisors (see below), whose sum is σ = 1594225248. Its totient is φ = 225746880.

The previous prime is 680239891. The next prime is 680240017. The reversal of 680240004 is 400042086.

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, 122137 + ... + 127584.

It is an arithmetic number, because the mean of its divisors is an integer number (66426052).

Almost surely, 2^680240004 is an apocalyptic number.

It is an amenable number.

680240004 is an abundant number, since it is smaller than the sum of its proper divisors (913985244).

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

680240004 is a wasteful number, since it uses less digits than its factorization.

680240004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249955 (or 249953 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 680240004 is about 26081.4110814580. The cubic root of 680240004 is about 879.4693788025.

The spelling of 680240004 in words is "six hundred eighty million, two hundred forty thousand, four".