680807402 has 16 divisors (see below), whose sum is σ = 1124464032. Its totient is φ = 306564720.

The previous prime is 680807377. The next prime is 680807423. The reversal of 680807402 is 204708086.

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, 142253 + ... + 146960.

It is an arithmetic number, because the mean of its divisors is an integer number (70279002).

Almost surely, 2^680807402 is an apocalyptic number.

680807402 is a deficient number, since it is larger than the sum of its proper divisors (443656630).

680807402 is a wasteful number, since it uses less digits than its factorization.

680807402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289333.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 680807402 is about 26092.2862547535. The cubic root of 680807402 is about 879.7138368783.

The spelling of 680807402 in words is "six hundred eighty million, eight hundred seven thousand, four hundred two".