226666240 has 72 divisors (see below), whose sum is σ = 552027168. Its totient is φ = 89149440.

The previous prime is 226666207. The next prime is 226666243. The reversal of 226666240 is 42666622.

It is a junction number, because it is equal to n+sod(n) for n = 226666196 and 226666205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226666243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76629 + ... + 79531.

It is an arithmetic number, because the mean of its divisors is an integer number (7667044).

Almost surely, 2^226666240 is an apocalyptic number.

226666240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226666240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276013584).

226666240 is an abundant number, since it is smaller than the sum of its proper divisors (325360928).

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

226666240 is an equidigital number, since it uses as much as digits as its factorization.

226666240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985 (or 2971 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 226666240 is about 15055.4388843368. The cubic root of 226666240 is about 609.7179023495.

The spelling of 226666240 in words is "two hundred twenty-six million, six hundred sixty-six thousand, two hundred forty".