442002244 has 24 divisors (see below), whose sum is σ = 862112160. Its totient is φ = 197053056.

The previous prime is 442002163. The next prime is 442002269. The reversal of 442002244 is 442200244.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169762 + ... + 172345.

It is an arithmetic number, because the mean of its divisors is an integer number (35921340).

Almost surely, 2^442002244 is an apocalyptic number.

It is an amenable number.

442002244 is a deficient number, since it is larger than the sum of its proper divisors (420109916).

442002244 is a wasteful number, since it uses less digits than its factorization.

442002244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342147 (or 342145 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 442002244 is about 21023.8494096585. The cubic root of 442002244 is about 761.7424494076.

Adding to 442002244 its reverse (442200244), we get a palindrome (884202488).

The spelling of 442002244 in words is "four hundred forty-two million, two thousand, two hundred forty-four".