680190492 has 24 divisors (see below), whose sum is σ = 1625822352. Its totient is φ = 221200000.

The previous prime is 680190449. The next prime is 680190503. The reversal of 680190492 is 294091086.

It is a self number, because there is not a number n which added to its sum of digits gives 680190492.

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, 690759 + ... + 691742.

It is an arithmetic number, because the mean of its divisors is an integer number (67742598).

Almost surely, 2^680190492 is an apocalyptic number.

It is an amenable number.

680190492 is an abundant number, since it is smaller than the sum of its proper divisors (945631860).

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

680190492 is a wasteful number, since it uses less digits than its factorization.

680190492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382549 (or 1382547 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 680190492 is about 26080.4618824130. The cubic root of 680190492 is about 879.4480405767.

The spelling of 680190492 in words is "six hundred eighty million, one hundred ninety thousand, four hundred ninety-two".