226664172 has 72 divisors (see below), whose sum is σ = 683294976. Its totient is φ = 61943904.

The previous prime is 226664161. The next prime is 226664173. The reversal of 226664172 is 271466622.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (226664173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13758 + ... + 25349.

It is an arithmetic number, because the mean of its divisors is an integer number (9490208).

Almost surely, 2^226664172 is an apocalyptic number.

It is an amenable number.

226664172 is an abundant number, since it is smaller than the sum of its proper divisors (456630804).

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

226664172 is a wasteful number, since it uses less digits than its factorization.

226664172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39147 (or 39142 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 226664172 is about 15055.3702046811. The cubic root of 226664172 is about 609.7160480806.

The spelling of 226664172 in words is "two hundred twenty-six million, six hundred sixty-four thousand, one hundred seventy-two".