442522356 has 24 divisors (see below), whose sum is σ = 1040686080. Its totient is φ = 146345472.

The previous prime is 442522321. The next prime is 442522357. The reversal of 442522356 is 653225244.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442522357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143661 + ... + 146708.

It is an arithmetic number, because the mean of its divisors is an integer number (43361920).

Almost surely, 2^442522356 is an apocalyptic number.

It is an amenable number.

442522356 is an abundant number, since it is smaller than the sum of its proper divisors (598163724).

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

442522356 is a wasteful number, since it uses less digits than its factorization.

442522356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290503 (or 290501 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

The square root of 442522356 is about 21036.2153440204. The cubic root of 442522356 is about 762.0411176413.

The spelling of 442522356 in words is "four hundred forty-two million, five hundred twenty-two thousand, three hundred fifty-six".