422439738 has 16 divisors (see below), whose sum is σ = 965576640. Its totient is φ = 120697056.

The previous prime is 422439727. The next prime is 422439739. The reversal of 422439738 is 837934224.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 10058089 = 422439738 / (4 + 2 + 2 + 4 + 3 + 9 + 7 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 422439738.

It is not an unprimeable number, because it can be changed into a prime (422439739) 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, 5029003 + ... + 5029086.

It is an arithmetic number, because the mean of its divisors is an integer number (60348540).

Almost surely, 2^422439738 is an apocalyptic number.

422439738 is an abundant number, since it is smaller than the sum of its proper divisors (543136902).

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

422439738 is a wasteful number, since it uses less digits than its factorization.

422439738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10058101.

The product of its digits is 290304, while the sum is 42.

The square root of 422439738 is about 20553.3388528482. The cubic root of 422439738 is about 750.3345103372.

The spelling of 422439738 in words is "four hundred twenty-two million, four hundred thirty-nine thousand, seven hundred thirty-eight".