422645237 has 12 divisors (see below), whose sum is σ = 503084736. Its totient is φ = 353840760.

The previous prime is 422645233. The next prime is 422645243. The reversal of 422645237 is 732546224.

It is not a de Polignac number, because 422645237 - 2² = 422645233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422645197 and 422645206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422645231) 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, 98189 + ... + 102402.

It is an arithmetic number, because the mean of its divisors is an integer number (41923728).

Almost surely, 2^422645237 is an apocalyptic number.

It is an amenable number.

422645237 is a deficient number, since it is larger than the sum of its proper divisors (80439499).

422645237 is a wasteful number, since it uses less digits than its factorization.

422645237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200648 (or 200641 counting only the distinct ones).

The product of its digits is 80640, while the sum is 35.

The square root of 422645237 is about 20558.3374084579. The cubic root of 422645237 is about 750.4561592428.

The spelling of 422645237 in words is "four hundred twenty-two million, six hundred forty-five thousand, two hundred thirty-seven".