4099984 has 20 divisors (see below), whose sum is σ = 9078784. Its totient is φ = 1757088.

The previous prime is 4099981. The next prime is 4100011. The reversal of 4099984 is 4899904.

It is a self number, because there is not a number n which added to its sum of digits gives 4099984.

It is not an unprimeable number, because it can be changed into a prime (4099981) 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, 18192 + ... + 18415.

Almost surely, 2^4099984 is an apocalyptic number.

It is an amenable number.

4099984 is an abundant number, since it is smaller than the sum of its proper divisors (4978800).

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

4099984 is a wasteful number, since it uses less digits than its factorization.

4099984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36622 (or 36616 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 4099984 is about 2024.8417222094. The cubic root of 4099984 is about 160.0518581902.

The spelling of 4099984 in words is "four million, ninety-nine thousand, nine hundred eighty-four".