431442222 has 16 divisors (see below), whose sum is σ = 892639440. Its totient is φ = 138854912.

The previous prime is 431442169. The next prime is 431442227. The reversal of 431442222 is 222244134.

It is a super-2 number, since 2×431442222² = 372284781848594568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431442192 and 431442201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431442227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239603 + ... + 1239950.

It is an arithmetic number, because the mean of its divisors is an integer number (55789965).

Almost surely, 2^431442222 is an apocalyptic number.

431442222 is an abundant number, since it is smaller than the sum of its proper divisors (461197218).

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

431442222 is a wasteful number, since it uses less digits than its factorization.

431442222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479587.

The product of its digits is 3072, while the sum is 24.

The square root of 431442222 is about 20771.1873035703. The cubic root of 431442222 is about 755.6271396982.

Adding to 431442222 its reverse (222244134), we get a palindrome (653686356).

The spelling of 431442222 in words is "four hundred thirty-one million, four hundred forty-two thousand, two hundred twenty-two".