422402444 has 12 divisors (see below), whose sum is σ = 739564224. Its totient is φ = 211098384.

The previous prime is 422402441. The next prime is 422402473. The reversal of 422402444 is 444204224.

It is not an unprimeable number, because it can be changed into a prime (422402441) 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, 16067 + ... + 33210.

It is an arithmetic number, because the mean of its divisors is an integer number (61630352).

Almost surely, 2^422402444 is an apocalyptic number.

It is an amenable number.

422402444 is a deficient number, since it is larger than the sum of its proper divisors (317161780).

422402444 is a wasteful number, since it uses less digits than its factorization.

422402444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51424 (or 51422 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 422402444 is about 20552.4315836351. The cubic root of 422402444 is about 750.3124292400.

Adding to 422402444 its reverse (444204224), we get a palindrome (866606668).

The spelling of 422402444 in words is "four hundred twenty-two million, four hundred two thousand, four hundred forty-four".