422631369 has 12 divisors (see below), whose sum is σ = 616513092. Its totient is φ = 278964000.

The previous prime is 422631367. The next prime is 422631449. The reversal of 422631369 is 963136224.

It can be written as a sum of positive squares in 2 ways, for example, as 213539769 + 209091600 = 14613^2 + 14460^2 .

It is not a de Polignac number, because 422631369 - 2¹ = 422631367 is a prime.

It is a super-2 number, since 2×422631369² = 357234548125628322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (422631361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231562 + ... + 233379.

It is an arithmetic number, because the mean of its divisors is an integer number (51376091).

Almost surely, 2^422631369 is an apocalyptic number.

It is an amenable number.

422631369 is a deficient number, since it is larger than the sum of its proper divisors (193881723).

422631369 is a wasteful number, since it uses less digits than its factorization.

422631369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465048 (or 465045 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 422631369 is about 20558.0001216072. Note that the first 3 decimals coincide. The cubic root of 422631369 is about 750.4479510665.

The spelling of 422631369 in words is "four hundred twenty-two million, six hundred thirty-one thousand, three hundred sixty-nine".