680407134 has 32 divisors (see below), whose sum is σ = 1524652416. Its totient is φ = 200610720.

The previous prime is 680407121. The next prime is 680407141. The reversal of 680407134 is 431704086.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 680407095 and 680407104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136872 + ... + 141755.

It is an arithmetic number, because the mean of its divisors is an integer number (47645388).

Almost surely, 2^680407134 is an apocalyptic number.

680407134 is an abundant number, since it is smaller than the sum of its proper divisors (844245282).

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

680407134 is a wasteful number, since it uses less digits than its factorization.

680407134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278680.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 680407134 is about 26084.6148907742. The cubic root of 680407134 is about 879.5413993052.

Multiplying 680407134 by its sum of digits (33), we get a palindrome (22453435422).

The spelling of 680407134 in words is "six hundred eighty million, four hundred seven thousand, one hundred thirty-four".