849194378 has 8 divisors (see below), whose sum is σ = 1304859780. Its totient is φ = 414241120.

The previous prime is 849194351. The next prime is 849194389. The reversal of 849194378 is 873491948.

It can be written as a sum of positive squares in 2 ways, for example, as 830419489 + 18774889 = 28817^2 + 4333^2 .

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

It is a super-2 number, since 2×849194378² = 1442262183253613768, which contains 22 as substring.

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, 5177933 + ... + 5178096.

Almost surely, 2^849194378 is an apocalyptic number.

849194378 is a deficient number, since it is larger than the sum of its proper divisors (455665402).

849194378 is a wasteful number, since it uses less digits than its factorization.

849194378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10356072.

The product of its digits is 1741824, while the sum is 53.

The square root of 849194378 is about 29140.9398956176. The cubic root of 849194378 is about 946.9688719475.

The spelling of 849194378 in words is "eight hundred forty-nine million, one hundred ninety-four thousand, three hundred seventy-eight".