422138116 has 9 divisors (see below), whose sum is σ = 738813621. Its totient is φ = 211048512.

The previous prime is 422138089. The next prime is 422138141. The reversal of 422138116 is 611831224.

The square root of 422138116 is 20546.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 94672900 + 327465216 = 9730^2 + 18096^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 35956 + ... + 46228.

Almost surely, 2^422138116 is an apocalyptic number.

422138116 is the 20546-th square number.

It is an amenable number.

422138116 is a deficient number, since it is larger than the sum of its proper divisors (316675505).

422138116 is an frugal number, since it uses more digits than its factorization.

422138116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20550 (or 10275 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The cubic root of 422138116 is about 750.1558881888.

Multiplying 422138116 by its product of digits (2304), we get a square (972606219264 = 986208²).

The spelling of 422138116 in words is "four hundred twenty-two million, one hundred thirty-eight thousand, one hundred sixteen".