4099949568 has 704 divisors, whose sum is σ = 15351517440. Its totient is φ = 1061683200.

The previous prime is 4099949549. The next prime is 4099949569. The reversal of 4099949568 is 8659499904.

It is a tau number, because it is divible by the number of its divisors (704).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4099949569) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67212258 + ... + 67212318.

Almost surely, 2^4099949568 is an apocalyptic number.

4099949568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4099949568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7675758720).

4099949568 is an abundant number, since it is smaller than the sum of its proper divisors (11251567872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4099949568 is a wasteful number, since it uses less digits than its factorization.

4099949568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The square root of 4099949568 is about 64030.8485653595. The cubic root of 4099949568 is about 1600.5141014613.

The spelling of 4099949568 in words is "four billion, ninety-nine million, nine hundred forty-nine thousand, five hundred sixty-eight".