226688549 has 4 divisors (see below), whose sum is σ = 232217580. Its totient is φ = 221159520.

The previous prime is 226688543. The next prime is 226688551. The reversal of 226688549 is 945886622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72556324 + 154132225 = 8518^2 + 12415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226688549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226688497 and 226688506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226688543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2764454 + ... + 2764535.

It is an arithmetic number, because the mean of its divisors is an integer number (58054395).

Almost surely, 2^226688549 is an apocalyptic number.

It is an amenable number.

226688549 is a deficient number, since it is larger than the sum of its proper divisors (5529031).

226688549 is an equidigital number, since it uses as much as digits as its factorization.

226688549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5529030.

The product of its digits is 1658880, while the sum is 50.

The square root of 226688549 is about 15056.1797611479. The cubic root of 226688549 is about 609.7379049613.

The spelling of 226688549 in words is "two hundred twenty-six million, six hundred eighty-eight thousand, five hundred forty-nine".