442220662 has 8 divisors (see below), whose sum is σ = 714356496. Its totient is φ = 204101832.

The previous prime is 442220651. The next prime is 442220663. The reversal of 442220662 is 266022244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×442220662² = 391118227799436488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442220662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442220663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8504218 + ... + 8504269.

It is an arithmetic number, because the mean of its divisors is an integer number (89294562).

Almost surely, 2^442220662 is an apocalyptic number.

442220662 is a deficient number, since it is larger than the sum of its proper divisors (272135834).

442220662 is a wasteful number, since it uses less digits than its factorization.

442220662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17008502.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 442220662 is about 21029.0432973067. The cubic root of 442220662 is about 761.8679019111.

The spelling of 442220662 in words is "four hundred forty-two million, two hundred twenty thousand, six hundred sixty-two".