422220234 has 16 divisors (see below), whose sum is σ = 846180288. Its totient is φ = 140450112.

The previous prime is 422220233. The next prime is 422220277. The reversal of 422220234 is 432022224.

It is a self number, because there is not a number n which added to its sum of digits gives 422220234.

It is not an unprimeable number, because it can be changed into a prime (422220233) 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 7 ways as a sum of consecutive naturals, for example, 69327 + ... + 75170.

It is an arithmetic number, because the mean of its divisors is an integer number (52886268).

Almost surely, 2^422220234 is an apocalyptic number.

422220234 is an abundant number, since it is smaller than the sum of its proper divisors (423960054).

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

422220234 is a wasteful number, since it uses less digits than its factorization.

422220234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144989.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 422220234 is about 20547.9982966711. The cubic root of 422220234 is about 750.2045273308.

Adding to 422220234 its reverse (432022224), we get a palindrome (854242458).

The spelling of 422220234 in words is "four hundred twenty-two million, two hundred twenty thousand, two hundred thirty-four".