667400074 has 16 divisors (see below), whose sum is σ = 1096804800. Its totient is φ = 302059360.

The previous prime is 667400011. The next prime is 667400081. The reversal of 667400074 is 470004766.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59974 + ... + 70225.

It is an arithmetic number, because the mean of its divisors is an integer number (68550300).

Almost surely, 2^667400074 is an apocalyptic number.

667400074 is a deficient number, since it is larger than the sum of its proper divisors (429404726).

667400074 is a wasteful number, since it uses less digits than its factorization.

667400074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130445.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 667400074 is about 25834.0874427567. The cubic root of 667400074 is about 873.9006924958.

It can be divided in two parts, 66 and 7400074, that multiplied together give a palindrome (488404884).

The spelling of 667400074 in words is "six hundred sixty-seven million, four hundred thousand, seventy-four".