422897893636 has 9 divisors (see below), whose sum is σ = 740073589941. Its totient is φ = 211448296512.

The previous prime is 422897893591. The next prime is 422897893651. The reversal of 422897893636 is 636398798224.

The square root of 422897893636 is 650306.

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., 323203620100 + 99694273536 = 568510^2 + 315744^2 .

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 1138036 + ... + 1463188.

Almost surely, 2^422897893636 is an apocalyptic number.

422897893636 is the 650306-th square number.

It is an amenable number.

422897893636 is a deficient number, since it is larger than the sum of its proper divisors (317175696305).

422897893636 is an frugal number, since it uses more digits than its factorization.

422897893636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650310 (or 325155 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 67.

The spelling of 422897893636 in words is "four hundred twenty-two billion, eight hundred ninety-seven million, eight hundred ninety-three thousand, six hundred thirty-six".