226198778 has 8 divisors (see below), whose sum is σ = 365398068. Its totient is φ = 104399424.

The previous prime is 226198759. The next prime is 226198783. The reversal of 226198778 is 877891622.

It can be written as a sum of positive squares in 2 ways, for example, as 223711849 + 2486929 = 14957^2 + 1577^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4349951 + ... + 4350002.

Almost surely, 2^226198778 is an apocalyptic number.

226198778 is a deficient number, since it is larger than the sum of its proper divisors (139199290).

226198778 is a wasteful number, since it uses less digits than its factorization.

226198778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8699968.

The product of its digits is 677376, while the sum is 50.

The square root of 226198778 is about 15039.9061832180. The cubic root of 226198778 is about 609.2984661033.

The spelling of 226198778 in words is "two hundred twenty-six million, one hundred ninety-eight thousand, seven hundred seventy-eight".