442208622 has 16 divisors (see below), whose sum is σ = 930965760. Its totient is φ = 139644792.

The previous prime is 442208609. The next prime is 442208639. The reversal of 442208622 is 226802244.

It is a super-3 number, since 3×442208622³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 442208622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1939398 + ... + 1939625.

It is an arithmetic number, because the mean of its divisors is an integer number (58185360).

Almost surely, 2^442208622 is an apocalyptic number.

442208622 is an abundant number, since it is smaller than the sum of its proper divisors (488757138).

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

442208622 is a wasteful number, since it uses less digits than its factorization.

442208622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879047.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 442208622 is about 21028.7570246080. The cubic root of 442208622 is about 761.8609875856.

The spelling of 442208622 in words is "four hundred forty-two million, two hundred eight thousand, six hundred twenty-two".