4399199888 has 40 divisors (see below), whose sum is σ = 9107687160. Its totient is φ = 2051205120.

The previous prime is 4399199879. The next prime is 4399199899. The reversal of 4399199888 is 8889919934.

It can be written as a sum of positive squares in 4 ways, for example, as 649842064 + 3749357824 = 25492^2 + 61232^2 .

It is a Harshad number since it is a multiple of its sum of digits (68).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44543 + ... + 103838.

It is an arithmetic number, because the mean of its divisors is an integer number (227692179).

Almost surely, 2^4399199888 is an apocalyptic number.

It is an amenable number.

4399199888 is an abundant number, since it is smaller than the sum of its proper divisors (4708487272).

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

4399199888 is a wasteful number, since it uses less digits than its factorization.

4399199888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148515 (or 148509 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 68.

The square root of 4399199888 is about 66326.4644617818. The cubic root of 4399199888 is about 1638.5432096073.

The spelling of 4399199888 in words is "four billion, three hundred ninety-nine million, one hundred ninety-nine thousand, eight hundred eighty-eight".