667422274 has 16 divisors (see below), whose sum is σ = 1012578336. Its totient is φ = 329904000.

The previous prime is 667422271. The next prime is 667422331. The reversal of 667422274 is 472224766.

It is not an unprimeable number, because it can be changed into a prime (667422271) 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, 280309 + ... + 282679.

It is an arithmetic number, because the mean of its divisors is an integer number (63286146).

Almost surely, 2^667422274 is an apocalyptic number.

667422274 is a deficient number, since it is larger than the sum of its proper divisors (345156062).

667422274 is a wasteful number, since it uses less digits than its factorization.

667422274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921.

The product of its digits is 225792, while the sum is 40.

The square root of 667422274 is about 25834.5171040606. The cubic root of 667422274 is about 873.9103820264.

The spelling of 667422274 in words is "six hundred sixty-seven million, four hundred twenty-two thousand, two hundred seventy-four".