422312144 has 20 divisors (see below), whose sum is σ = 818891040. Its totient is φ = 210985440.

The previous prime is 422312087. The next prime is 422312153. The reversal of 422312144 is 441213224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11099 + ... + 31109.

It is an arithmetic number, because the mean of its divisors is an integer number (40944552).

Almost surely, 2^422312144 is an apocalyptic number.

It is an amenable number.

422312144 is a deficient number, since it is larger than the sum of its proper divisors (396578896).

422312144 is a wasteful number, since it uses less digits than its factorization.

422312144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21338 (or 21332 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 422312144 is about 20550.2346458623. The cubic root of 422312144 is about 750.2589588731.

Adding to 422312144 its reverse (441213224), we get a palindrome (863525368).

The spelling of 422312144 in words is "four hundred twenty-two million, three hundred twelve thousand, one hundred forty-four".