226172736 has 84 divisors (see below), whose sum is σ = 672340032. Its totient is φ = 75385728.

The previous prime is 226172729. The next prime is 226172741. The reversal of 226172736 is 637271622.

It is a happy number.

226172736 is a `hidden beast` number, since 2 + 2 + 617 + 2 + 7 + 36 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 226172736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8281 + ... + 22823.

It is an arithmetic number, because the mean of its divisors is an integer number (8004048).

Almost surely, 2^226172736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226172736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336170016).

226172736 is an abundant number, since it is smaller than the sum of its proper divisors (446167296).

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

226172736 is an equidigital number, since it uses as much as digits as its factorization.

226172736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14570 (or 14548 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 226172736 is about 15039.0403949188. The cubic root of 226172736 is about 609.2750826000.

The spelling of 226172736 in words is "two hundred twenty-six million, one hundred seventy-two thousand, seven hundred thirty-six".