4222522 has 8 divisors (see below), whose sum is σ = 6667200. Its totient is φ = 2000124.

The previous prime is 4222513. The next prime is 4222529. The reversal of 4222522 is 2252224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4222522.

It is not an unprimeable number, because it can be changed into a prime (4222529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55522 + ... + 55597.

It is an arithmetic number, because the mean of its divisors is an integer number (833400).

Almost surely, 2^4222522 is an apocalyptic number.

4222522 is a deficient number, since it is larger than the sum of its proper divisors (2444678).

4222522 is a wasteful number, since it uses less digits than its factorization.

4222522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111140.

The product of its digits is 640, while the sum is 19.

The square root of 4222522 is about 2054.8776119273. The cubic root of 4222522 is about 161.6307446079.

Adding to 4222522 its reverse (2252224), we get a palindrome (6474746).

The spelling of 4222522 in words is "four million, two hundred twenty-two thousand, five hundred twenty-two".