423440522 has 32 divisors (see below), whose sum is σ = 699969600. Its totient is φ = 191294208.

The previous prime is 423440503. The next prime is 423440527. The reversal of 423440522 is 225044324.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 423440491 and 423440500.

It is not an unprimeable number, because it can be changed into a prime (423440527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83804 + ... + 88712.

It is an arithmetic number, because the mean of its divisors is an integer number (21874050).

Almost surely, 2^423440522 is an apocalyptic number.

423440522 is a deficient number, since it is larger than the sum of its proper divisors (276529078).

423440522 is a wasteful number, since it uses less digits than its factorization.

423440522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 423440522 is about 20577.6704706825. The cubic root of 423440522 is about 750.9265715562.

Adding to 423440522 its reverse (225044324), we get a palindrome (648484846).

The spelling of 423440522 in words is "four hundred twenty-three million, four hundred forty thousand, five hundred twenty-two".