667400674 has 16 divisors (see below), whose sum is σ = 1036949760. Its totient is φ = 321824880.

The previous prime is 667400663. The next prime is 667400677. The reversal of 667400674 is 476004766.

It is not an unprimeable number, because it can be changed into a prime (667400677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204 + ... + 36535.

It is an arithmetic number, because the mean of its divisors is an integer number (64809360).

Almost surely, 2^667400674 is an apocalyptic number.

667400674 is a deficient number, since it is larger than the sum of its proper divisors (369549086).

667400674 is a wasteful number, since it uses less digits than its factorization.

667400674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37065.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 667400674 is about 25834.0990553183. The cubic root of 667400674 is about 873.9009543779.

The spelling of 667400674 in words is "six hundred sixty-seven million, four hundred thousand, six hundred seventy-four".