272123226 has 20 divisors (see below), whose sum is σ = 609757962. Its totient is φ = 90707688.

The previous prime is 272123141. The next prime is 272123227. The reversal of 272123226 is 622321272.

It can be written as a sum of positive squares in only one way, i.e., 223472601 + 48650625 = 14949^2 + 6975^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 272123226.

It is not an unprimeable number, because it can be changed into a prime (272123227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 839725 + ... + 840048.

Almost surely, 2^272123226 is an apocalyptic number.

272123226 is an abundant number, since it is smaller than the sum of its proper divisors (337634736).

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

272123226 is a wasteful number, since it uses less digits than its factorization.

272123226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679787 (or 1679778 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 272123226 is about 16496.1579163149. The cubic root of 272123226 is about 648.0201897002.

Adding to 272123226 its reverse (622321272), we get a palindrome (894444498).

The spelling of 272123226 in words is "two hundred seventy-two million, one hundred twenty-three thousand, two hundred twenty-six".