422143504 has 10 divisors (see below), whose sum is σ = 817903070. Its totient is φ = 211071744.

The previous prime is 422143499. The next prime is 422143529. The reversal of 422143504 is 405341224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 329059600 + 93083904 = 18140^2 + 9648^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13191969 + ... + 13192000.

It is an arithmetic number, because the mean of its divisors is an integer number (81790307).

Almost surely, 2^422143504 is an apocalyptic number.

It is an amenable number.

422143504 is a deficient number, since it is larger than the sum of its proper divisors (395759566).

422143504 is a wasteful number, since it uses less digits than its factorization.

422143504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26383977 (or 26383971 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 422143504 is about 20546.1311199943. The cubic root of 422143504 is about 750.1590797373.

Adding to 422143504 its reverse (405341224), we get a palindrome (827484728).

The spelling of 422143504 in words is "four hundred twenty-two million, one hundred forty-three thousand, five hundred four".