680405574 has 16 divisors (see below), whose sum is σ = 1363768560. Its totient is φ = 226308960.

The previous prime is 680405563. The next prime is 680405629. The reversal of 680405574 is 475504086.

It is a Curzon number.

It is a congruent number.

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, 120229 + ... + 125760.

It is an arithmetic number, because the mean of its divisors is an integer number (85235535).

Almost surely, 2^680405574 is an apocalyptic number.

680405574 is an abundant number, since it is smaller than the sum of its proper divisors (683362986).

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

680405574 is a wasteful number, since it uses less digits than its factorization.

680405574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246455.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 680405574 is about 26084.5849880729. The cubic root of 680405574 is about 879.5407271167.

The spelling of 680405574 in words is "six hundred eighty million, four hundred five thousand, five hundred seventy-four".