8309442194 has 4 divisors (see below), whose sum is σ = 12464163294. Its totient is φ = 4154721096.

The previous prime is 8309442173. The next prime is 8309442247. The reversal of 8309442194 is 4912449038.

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

It can be written as a sum of positive squares in only one way, i.e., 4203836569 + 4105605625 = 64837^2 + 64075^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077360547 + ... + 2077360550.

Almost surely, 2^8309442194 is an apocalyptic number.

8309442194 is a deficient number, since it is larger than the sum of its proper divisors (4154721100).

8309442194 is a wasteful number, since it uses less digits than its factorization.

8309442194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154721099.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 8309442194 is about 91156.1418336691. The cubic root of 8309442194 is about 2025.4613342246.

The spelling of 8309442194 in words is "eight billion, three hundred nine million, four hundred forty-two thousand, one hundred ninety-four".