4049206081 has 32 divisors (see below), whose sum is σ = 4497776640. Its totient is φ = 3628627200.

The previous prime is 4049206079. The next prime is 4049206103. The reversal of 4049206081 is 1806029404.

It is a cyclic number.

It is not a de Polignac number, because 4049206081 - 2¹ = 4049206079 is a prime.

It is a super-2 number, since 2×4049206081² = 32792139772814757122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4049206061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12233086 + ... + 12233416.

It is an arithmetic number, because the mean of its divisors is an integer number (140555520).

Almost surely, 2^4049206081 is an apocalyptic number.

It is an amenable number.

4049206081 is a deficient number, since it is larger than the sum of its proper divisors (448570559).

4049206081 is a wasteful number, since it uses less digits than its factorization.

4049206081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 4049206081 is about 63633.3723843079. The cubic root of 4049206081 is about 1593.8836908156.

The spelling of 4049206081 in words is "four billion, forty-nine million, two hundred six thousand, eighty-one".