226566186 has 64 divisors (see below), whose sum is σ = 566562816. Its totient is φ = 58680000.

The previous prime is 226566181. The next prime is 226566199. The reversal of 226566186 is 681665622.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (226566181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301311 + ... + 302061.

It is an arithmetic number, because the mean of its divisors is an integer number (8852544).

Almost surely, 2^226566186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226566186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283281408).

226566186 is an abundant number, since it is smaller than the sum of its proper divisors (339996630).

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

226566186 is a wasteful number, since it uses less digits than its factorization.

226566186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427.

The product of its digits is 207360, while the sum is 42.

The square root of 226566186 is about 15052.1156652479. The cubic root of 226566186 is about 609.6281761610.

The spelling of 226566186 in words is "two hundred twenty-six million, five hundred sixty-six thousand, one hundred eighty-six".