226666872 has 24 divisors (see below), whose sum is σ = 613889640. Its totient is φ = 75555600.

The previous prime is 226666841. The next prime is 226666873. The reversal of 226666872 is 278666622.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226666873) 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 5 ways as a sum of consecutive naturals, for example, 1574004 + ... + 1574147.

It is an arithmetic number, because the mean of its divisors is an integer number (25578735).

Almost surely, 2^226666872 is an apocalyptic number.

It is an amenable number.

226666872 is an abundant number, since it is smaller than the sum of its proper divisors (387222768).

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

226666872 is a wasteful number, since it uses less digits than its factorization.

226666872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148163 (or 3148156 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 226666872 is about 15055.4598734147. The cubic root of 226666872 is about 609.7184690290.

The spelling of 226666872 in words is "two hundred twenty-six million, six hundred sixty-six thousand, eight hundred seventy-two".