4099856 has 20 divisors (see below), whose sum is σ = 8411292. Its totient is φ = 1929216.

The previous prime is 4099853. The next prime is 4099861. The reversal of 4099856 is 6589904.

4099856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2611456 + 1488400 = 1616^2 + 1220^2 .

It is not an unprimeable number, because it can be changed into a prime (4099853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7265 + ... + 7808.

Almost surely, 2^4099856 is an apocalyptic number.

It is an amenable number.

4099856 is an abundant number, since it is smaller than the sum of its proper divisors (4311436).

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

4099856 is a wasteful number, since it uses less digits than its factorization.

4099856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15098 (or 15092 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 4099856 is about 2024.8101145540. The cubic root of 4099856 is about 160.0501925861.

The spelling of 4099856 in words is "four million, ninety-nine thousand, eight hundred fifty-six".