422144044 has 48 divisors (see below), whose sum is σ = 860844096. Its totient is φ = 177408000.

The previous prime is 422143987. The next prime is 422144057. The reversal of 422144044 is 440441224.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

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, 318904 + ... + 320224.

It is an arithmetic number, because the mean of its divisors is an integer number (17934252).

Almost surely, 2^422144044 is an apocalyptic number.

It is an amenable number.

422144044 is an abundant number, since it is smaller than the sum of its proper divisors (438700052).

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

422144044 is a wasteful number, since it uses less digits than its factorization.

422144044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 422144044 is about 20546.1442611503. The cubic root of 422144044 is about 750.1593996014.

Adding to 422144044 its reverse (440441224), we get a palindrome (862585268).

The spelling of 422144044 in words is "four hundred twenty-two million, one hundred forty-four thousand, forty-four".