422205144 has 16 divisors (see below), whose sum is σ = 1055512920. Its totient is φ = 140735040.

The previous prime is 422205143. The next prime is 422205163. The reversal of 422205144 is 441502224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 17591881 = 422205144 / (4 + 2 + 2 + 2 + 0 + 5 + 1 + 4 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422205143) 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, 8795917 + ... + 8795964.

Almost surely, 2^422205144 is an apocalyptic number.

It is an amenable number.

422205144 is an abundant number, since it is smaller than the sum of its proper divisors (633307776).

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

422205144 is a wasteful number, since it uses less digits than its factorization.

422205144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17591890 (or 17591886 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 422205144 is about 20547.6311043390. The cubic root of 422205144 is about 750.1955898773.

Adding to 422205144 its reverse (441502224), we get a palindrome (863707368).

The spelling of 422205144 in words is "four hundred twenty-two million, two hundred five thousand, one hundred forty-four".