422640604 has 24 divisors (see below), whose sum is σ = 784864080. Its totient is φ = 198448896.

The previous prime is 422640601. The next prime is 422640613. The reversal of 422640604 is 406046224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422640601) 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 7 ways as a sum of consecutive naturals, for example, 25102 + ... + 38410.

It is an arithmetic number, because the mean of its divisors is an integer number (32702670).

Almost surely, 2^422640604 is an apocalyptic number.

It is an amenable number.

422640604 is a deficient number, since it is larger than the sum of its proper divisors (362223476).

422640604 is a wasteful number, since it uses less digits than its factorization.

422640604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13797 (or 13795 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 422640604 is about 20558.2247288038. The cubic root of 422640604 is about 750.4534170879.

Adding to 422640604 its reverse (406046224), we get a palindrome (828686828).

The spelling of 422640604 in words is "four hundred twenty-two million, six hundred forty thousand, six hundred four".