40668268 has 12 divisors (see below), whose sum is σ = 71466472. Its totient is φ = 20249280.

The previous prime is 40668223. The next prime is 40668289. The reversal of 40668268 is 86286604.

It is a self number, because there is not a number n which added to its sum of digits gives 40668268.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20130 + ... + 22057.

Almost surely, 2^40668268 is an apocalyptic number.

It is an amenable number.

40668268 is a deficient number, since it is larger than the sum of its proper divisors (30798204).

40668268 is a wasteful number, since it uses less digits than its factorization.

40668268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42432 (or 42430 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 40668268 is about 6377.1677098850. The cubic root of 40668268 is about 343.8892175271.

The spelling of 40668268 in words is "forty million, six hundred sixty-eight thousand, two hundred sixty-eight".