226212857 has 8 divisors (see below), whose sum is σ = 250198536. Its totient is φ = 203167872.

The previous prime is 226212853. The next prime is 226212871. The reversal of 226212857 is 758212622.

It can be written as a sum of positive squares in 4 ways, for example, as 5125696 + 221087161 = 2264^2 + 14869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 226212857 - 2² = 226212853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226212853) 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, 234668 + ... + 235629.

It is an arithmetic number, because the mean of its divisors is an integer number (31274817).

Almost surely, 2^226212857 is an apocalyptic number.

It is an amenable number.

226212857 is a deficient number, since it is larger than the sum of its proper divisors (23985679).

226212857 is a wasteful number, since it uses less digits than its factorization.

226212857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470347.

The product of its digits is 26880, while the sum is 35.

The square root of 226212857 is about 15040.3742307165. The cubic root of 226212857 is about 609.3111071016.

The spelling of 226212857 in words is "two hundred twenty-six million, two hundred twelve thousand, eight hundred fifty-seven".