422905938 has 48 divisors (see below), whose sum is σ = 1046736576. Its totient is φ = 111533760.

The previous prime is 422905913. The next prime is 422905997. The reversal of 422905938 is 839509224.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 422905938.

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 in 23 ways as a sum of consecutive naturals, for example, 22693 + ... + 36888.

It is an arithmetic number, because the mean of its divisors is an integer number (21807012).

Almost surely, 2^422905938 is an apocalyptic number.

422905938 is an abundant number, since it is smaller than the sum of its proper divisors (623830638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422905938 is a wasteful number, since it uses less digits than its factorization.

422905938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59619 (or 59606 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 422905938 is about 20564.6769485932. The cubic root of 422905938 is about 750.6104292556.

The spelling of 422905938 in words is "four hundred twenty-two million, nine hundred five thousand, nine hundred thirty-eight".