172422226 has 32 divisors (see below), whose sum is σ = 287712000. Its totient is φ = 77156352.

The previous prime is 172422181. The next prime is 172422227. The reversal of 172422226 is 622224271.

It is a junction number, because it is equal to n+sod(n) for n = 172422194 and 172422203.

It is not an unprimeable number, because it can be changed into a prime (172422227) 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 15 ways as a sum of consecutive naturals, for example, 50130 + ... + 53458.

It is an arithmetic number, because the mean of its divisors is an integer number (8991000).

Almost surely, 2^172422226 is an apocalyptic number.

172422226 is a deficient number, since it is larger than the sum of its proper divisors (115289774).

172422226 is a wasteful number, since it uses less digits than its factorization.

172422226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426.

The product of its digits is 5376, while the sum is 28.

The square root of 172422226 is about 13130.9643971797. The cubic root of 172422226 is about 556.5844676857.

Adding to 172422226 its reverse (622224271), we get a palindrome (794646497).

The spelling of 172422226 in words is "one hundred seventy-two million, four hundred twenty-two thousand, two hundred twenty-six".