226838440 has 16 divisors (see below), whose sum is σ = 510386580. Its totient is φ = 90735360.

The previous prime is 226838399. The next prime is 226838449. The reversal of 226838440 is 44838622.

It can be written as a sum of positive squares in 2 ways, for example, as 208571364 + 18267076 = 14442^2 + 4274^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 226838440.

It is not an unprimeable number, because it can be changed into a prime (226838449) 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 3 ways as a sum of consecutive naturals, for example, 2835441 + ... + 2835520.

Almost surely, 2^226838440 is an apocalyptic number.

226838440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226838440 is an abundant number, since it is smaller than the sum of its proper divisors (283548140).

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

226838440 is a wasteful number, since it uses less digits than its factorization.

226838440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5670972 (or 5670968 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 226838440 is about 15061.1566620894. The cubic root of 226838440 is about 609.8722656487.

The spelling of 226838440 in words is "two hundred twenty-six million, eight hundred thirty-eight thousand, four hundred forty".