4049688194 has 8 divisors (see below), whose sum is σ = 6086193228. Its totient is φ = 2020957120.

The previous prime is 4049688163. The next prime is 4049688199. The reversal of 4049688194 is 4918869404.

It can be written as a sum of positive squares in 2 ways, for example, as 4008535969 + 41152225 = 63313^2 + 6415^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4049688199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1942187 + ... + 1944270.

Almost surely, 2^4049688194 is an apocalyptic number.

4049688194 is a deficient number, since it is larger than the sum of its proper divisors (2036505034).

4049688194 is a wasteful number, since it uses less digits than its factorization.

4049688194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886980.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The square root of 4049688194 is about 63637.1604803357. The cubic root of 4049688194 is about 1593.9469461416.

The spelling of 4049688194 in words is "four billion, forty-nine million, six hundred eighty-eight thousand, one hundred ninety-four".