667028226 has 16 divisors (see below), whose sum is σ = 1335414528. Its totient is φ = 222116400.

The previous prime is 667028213. The next prime is 667028237. The reversal of 667028226 is 622820766.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50145 + ... + 62036.

It is an arithmetic number, because the mean of its divisors is an integer number (83463408).

Almost surely, 2^667028226 is an apocalyptic number.

667028226 is an abundant number, since it is smaller than the sum of its proper divisors (668386302).

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

667028226 is a wasteful number, since it uses less digits than its factorization.

667028226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113177.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 667028226 is about 25826.8895920511. The cubic root of 667028226 is about 873.7383617804.

The spelling of 667028226 in words is "six hundred sixty-seven million, twenty-eight thousand, two hundred twenty-six".