680629014 has 128 divisors (see below), whose sum is σ = 1713600000. Its totient is φ = 198785664.

The previous prime is 680628997. The next prime is 680629057. The reversal of 680629014 is 410926086.

It is a super-2 number, since 2×680629014² = 926511709397224392, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 680629014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1363737 + ... + 1364235.

It is an arithmetic number, because the mean of its divisors is an integer number (13387500).

Almost surely, 2^680629014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680629014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (856800000).

680629014 is an abundant number, since it is smaller than the sum of its proper divisors (1032970986).

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

680629014 is a wasteful number, since it uses less digits than its factorization.

680629014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 680629014 is about 26088.8676258668. The cubic root of 680629014 is about 879.6369947347.

The spelling of 680629014 in words is "six hundred eighty million, six hundred twenty-nine thousand, fourteen".