191968226 has 32 divisors (see below), whose sum is σ = 306005040. Its totient is φ = 90178816.

The previous prime is 191968223. The next prime is 191968261. The reversal of 191968226 is 622869191.

It can be written as a sum of positive squares in 8 ways, for example, as 128845201 + 63123025 = 11351^2 + 7945^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (191968223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605420 + ... + 605736.

Almost surely, 2^191968226 is an apocalyptic number.

191968226 is a deficient number, since it is larger than the sum of its proper divisors (114036814).

191968226 is a wasteful number, since it uses less digits than its factorization.

191968226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598.

The product of its digits is 93312, while the sum is 44.

The square root of 191968226 is about 13855.2598676459. The cubic root of 191968226 is about 576.8680027299.

The spelling of 191968226 in words is "one hundred ninety-one million, nine hundred sixty-eight thousand, two hundred twenty-six".