422012254 has 4 divisors (see below), whose sum is σ = 633018384. Its totient is φ = 211006126.

The previous prime is 422012243. The next prime is 422012281. The reversal of 422012254 is 452210224.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105503062 + ... + 105503065.

It is an arithmetic number, because the mean of its divisors is an integer number (158254596).

Almost surely, 2^422012254 is an apocalyptic number.

422012254 is a deficient number, since it is larger than the sum of its proper divisors (211006130).

422012254 is a wasteful number, since it uses less digits than its factorization.

422012254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211006129.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 422012254 is about 20542.9368397024. The cubic root of 422012254 is about 750.0813268846.

Adding to 422012254 its reverse (452210224), we get a palindrome (874222478).

The spelling of 422012254 in words is "four hundred twenty-two million, twelve thousand, two hundred fifty-four".