442651422 has 32 divisors (see below), whose sum is σ = 927728640. Its totient is φ = 140534240.

The previous prime is 442651381. The next prime is 442651471. The reversal of 442651422 is 224156244.

It is a self number, because there is not a number n which added to its sum of digits gives 442651422.

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, 26272 + ... + 39692.

It is an arithmetic number, because the mean of its divisors is an integer number (28991520).

Almost surely, 2^442651422 is an apocalyptic number.

442651422 is an abundant number, since it is smaller than the sum of its proper divisors (485077218).

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

442651422 is a wasteful number, since it uses less digits than its factorization.

442651422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13688.

The product of its digits is 15360, while the sum is 30.

The square root of 442651422 is about 21039.2828299826. The cubic root of 442651422 is about 762.1151960369.

The spelling of 442651422 in words is "four hundred forty-two million, six hundred fifty-one thousand, four hundred twenty-two".