422043523 has 12 divisors (see below), whose sum is σ = 488317480. Its totient is φ = 363480480.

The previous prime is 422043521. The next prime is 422043529. The reversal of 422043523 is 325340224.

It is not a de Polignac number, because 422043523 - 2¹ = 422043521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422043521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89490 + ... + 94087.

Almost surely, 2^422043523 is an apocalyptic number.

422043523 is a deficient number, since it is larger than the sum of its proper divisors (66273957).

422043523 is a wasteful number, since it uses less digits than its factorization.

422043523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183618 (or 183607 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 422043523 is about 20543.6978901073. The cubic root of 422043523 is about 750.0998521869.

Adding to 422043523 its reverse (325340224), we get a palindrome (747383747).

The spelling of 422043523 in words is "four hundred twenty-two million, forty-three thousand, five hundred twenty-three".