422642907 has 16 divisors (see below), whose sum is σ = 634959360. Its totient is φ = 277792200.

The previous prime is 422642903. The next prime is 422642929. The reversal of 422642907 is 709246224.

422642907 is a `hidden beast` number, since 4 + 2 + 2 + 642 + 9 + 0 + 7 = 666.

It is not a de Polignac number, because 422642907 - 2² = 422642903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422642903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108319 + ... + 112152.

It is an arithmetic number, because the mean of its divisors is an integer number (39684960).

Almost surely, 2^422642907 is an apocalyptic number.

422642907 is a deficient number, since it is larger than the sum of its proper divisors (212316453).

422642907 is a wasteful number, since it uses less digits than its factorization.

422642907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220551 (or 220545 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 422642907 is about 20558.2807403732. The cubic root of 422642907 is about 750.4547801776.

The spelling of 422642907 in words is "four hundred twenty-two million, six hundred forty-two thousand, nine hundred seven".