442223668 has 48 divisors (see below), whose sum is σ = 845873280. Its totient is φ = 201643904.

The previous prime is 442223659. The next prime is 442223681. The reversal of 442223668 is 866322244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220446 + ... + 222442.

It is an arithmetic number, because the mean of its divisors is an integer number (17622360).

Almost surely, 2^442223668 is an apocalyptic number.

It is an amenable number.

442223668 is a deficient number, since it is larger than the sum of its proper divisors (403649612).

442223668 is a wasteful number, since it uses less digits than its factorization.

442223668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136 (or 2134 counting only the distinct ones).

The product of its digits is 110592, while the sum is 37.

The square root of 442223668 is about 21029.1147697662. The cubic root of 442223668 is about 761.8696281758.

The spelling of 442223668 in words is "four hundred forty-two million, two hundred twenty-three thousand, six hundred sixty-eight".