667313740 has 12 divisors (see below), whose sum is σ = 1401358896. Its totient is φ = 266925488.

The previous prime is 667313737. The next prime is 667313741. The reversal of 667313740 is 47313766.

667313740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 667313740.

It is not an unprimeable number, because it can be changed into a prime (667313741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16682824 + ... + 16682863.

It is an arithmetic number, because the mean of its divisors is an integer number (116779908).

Almost surely, 2^667313740 is an apocalyptic number.

It is an amenable number.

667313740 is an abundant number, since it is smaller than the sum of its proper divisors (734045156).

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

667313740 is a wasteful number, since it uses less digits than its factorization.

667313740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33365696 (or 33365694 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 667313740 is about 25832.4164568474. The cubic root of 667313740 is about 873.8630086543.

The spelling of 667313740 in words is "six hundred sixty-seven million, three hundred thirteen thousand, seven hundred forty".