442226668 has 12 divisors (see below), whose sum is σ = 833427280. Its totient is φ = 204104592.

The previous prime is 442226657. The next prime is 442226683. The reversal of 442226668 is 866622244.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 442226668.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4252128 + ... + 4252231.

Almost surely, 2^442226668 is an apocalyptic number.

It is an amenable number.

442226668 is a deficient number, since it is larger than the sum of its proper divisors (391200612).

442226668 is a wasteful number, since it uses less digits than its factorization.

442226668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8504376 (or 8504374 counting only the distinct ones).

The product of its digits is 221184, while the sum is 40.

The square root of 442226668 is about 21029.1860993240. The cubic root of 442226668 is about 761.8713509870.

The spelling of 442226668 in words is "four hundred forty-two million, two hundred twenty-six thousand, six hundred sixty-eight".