4049999999 has 4 divisors (see below), whose sum is σ = 4074251664. Its totient is φ = 4025748336.

The previous prime is 4049999977. The next prime is 4050000001. The reversal of 4049999999 is 9999999404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4049999999 is a prime.

It is a Duffinian number.

4049999999 is a modest number, since divided by 99999 gives 40499 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4049996999) 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, 12125582 + ... + 12125915.

It is an arithmetic number, because the mean of its divisors is an integer number (1018562916).

Almost surely, 2^4049999999 is an apocalyptic number.

4049999999 is a deficient number, since it is larger than the sum of its proper divisors (24251665).

4049999999 is a wasteful number, since it uses less digits than its factorization.

4049999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24251664.

The product of its (nonzero) digits is 76527504, while the sum is 71.

The square root of 4049999999 is about 63639.6102989325. The cubic root of 4049999999 is about 1593.9878536427.

The spelling of 4049999999 in words is "four billion, forty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".