680069340 has 36 divisors (see below), whose sum is σ = 2062877544. Its totient is φ = 181351776.

The previous prime is 680069333. The next prime is 680069347. The reversal of 680069340 is 43960086.

It is an interprime number because it is at equal distance from previous prime (680069333) and next prime (680069347).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 680069295 and 680069304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680069347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1888902 + ... + 1889261.

It is an arithmetic number, because the mean of its divisors is an integer number (57302154).

Almost surely, 2^680069340 is an apocalyptic number.

680069340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680069340 is an abundant number, since it is smaller than the sum of its proper divisors (1382808204).

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

680069340 is a wasteful number, since it uses less digits than its factorization.

680069340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778178 (or 3778173 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 680069340 is about 26078.1391207272. The cubic root of 680069340 is about 879.3958232363.

The spelling of 680069340 in words is "six hundred eighty million, sixty-nine thousand, three hundred forty".