667340744 has 16 divisors (see below), whose sum is σ = 1430016000. Its totient is φ = 286003152.

The previous prime is 667340741. The next prime is 667340747. The reversal of 667340744 is 447043766.

It is an interprime number because it is at equal distance from previous prime (667340741) and next prime (667340747).

It is not an unprimeable number, because it can be changed into a prime (667340741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5958344 + ... + 5958455.

It is an arithmetic number, because the mean of its divisors is an integer number (89376000).

Almost surely, 2^667340744 is an apocalyptic number.

It is an amenable number.

667340744 is an abundant number, since it is smaller than the sum of its proper divisors (762675256).

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

667340744 is a wasteful number, since it uses less digits than its factorization.

667340744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11916812 (or 11916808 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 41.

The square root of 667340744 is about 25832.9391281751. The cubic root of 667340744 is about 873.8747959526.

The spelling of 667340744 in words is "six hundred sixty-seven million, three hundred forty thousand, seven hundred forty-four".