680040344 has 16 divisors (see below), whose sum is σ = 1275409800. Its totient is φ = 339931072.

The previous prime is 680040329. The next prime is 680040359. The reversal of 680040344 is 443040086.

It is an interprime number because it is at equal distance from previous prime (680040329) and next prime (680040359).

It is a congruent number.

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, 30419 + ... + 47805.

Almost surely, 2^680040344 is an apocalyptic number.

It is an amenable number.

680040344 is a deficient number, since it is larger than the sum of its proper divisors (595369456).

680040344 is a wasteful number, since it uses less digits than its factorization.

680040344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22282 (or 22278 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 680040344 is about 26077.5831702250. The cubic root of 680040344 is about 879.3833248423.

The spelling of 680040344 in words is "six hundred eighty million, forty thousand, three hundred forty-four".