680388134 has 8 divisors (see below), whose sum is σ = 1021241520. Its totient is φ = 339974296.

The previous prime is 680388103. The next prime is 680388143. The reversal of 680388134 is 431883086.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 680388091 and 680388100.

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, 105989 + ... + 112224.

It is an arithmetic number, because the mean of its divisors is an integer number (127655190).

Almost surely, 2^680388134 is an apocalyptic number.

680388134 is a deficient number, since it is larger than the sum of its proper divisors (340853386).

680388134 is a wasteful number, since it uses less digits than its factorization.

680388134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219774.

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 680388134 is about 26084.2506888735. The cubic root of 680388134 is about 879.5332123236.

The spelling of 680388134 in words is "six hundred eighty million, three hundred eighty-eight thousand, one hundred thirty-four".