422991234 has 40 divisors (see below), whose sum is σ = 961984848. Its totient is φ = 138889080.

The previous prime is 422991227. The next prime is 422991259. The reversal of 422991234 is 432199224.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 8632 + ... + 30339.

Almost surely, 2^422991234 is an apocalyptic number.

422991234 is an abundant number, since it is smaller than the sum of its proper divisors (538993614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422991234 is a wasteful number, since it uses less digits than its factorization.

422991234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39052 (or 39043 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 422991234 is about 20566.7506913465. The cubic root of 422991234 is about 750.6608894624.

The spelling of 422991234 in words is "four hundred twenty-two million, nine hundred ninety-one thousand, two hundred thirty-four".