226642872 has 16 divisors (see below), whose sum is σ = 566607240. Its totient is φ = 75547616.

The previous prime is 226642853. The next prime is 226642873. The reversal of 226642872 is 278246622.

It is a self number, because there is not a number n which added to its sum of digits gives 226642872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226642873) 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 3 ways as a sum of consecutive naturals, for example, 4721703 + ... + 4721750.

Almost surely, 2^226642872 is an apocalyptic number.

It is an amenable number.

226642872 is an abundant number, since it is smaller than the sum of its proper divisors (339964368).

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

226642872 is a wasteful number, since it uses less digits than its factorization.

226642872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9443462 (or 9443458 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 226642872 is about 15054.6627992792. The cubic root of 226642872 is about 609.6969488136.

The spelling of 226642872 in words is "two hundred twenty-six million, six hundred forty-two thousand, eight hundred seventy-two".