226617385 has 4 divisors (see below), whose sum is σ = 271940868. Its totient is φ = 181293904.

The previous prime is 226617359. The next prime is 226617449. The reversal of 226617385 is 583716622.

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 95491984 + 131125401 = 9772^2 + 11451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226617385 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22661734 + ... + 22661743.

It is an arithmetic number, because the mean of its divisors is an integer number (67985217).

Almost surely, 2^226617385 is an apocalyptic number.

It is an amenable number.

226617385 is a deficient number, since it is larger than the sum of its proper divisors (45323483).

226617385 is an equidigital number, since it uses as much as digits as its factorization.

226617385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45323482.

The product of its digits is 120960, while the sum is 40.

The square root of 226617385 is about 15053.8162935516. The cubic root of 226617385 is about 609.6740935780.

The spelling of 226617385 in words is "two hundred twenty-six million, six hundred seventeen thousand, three hundred eighty-five".