4399559989 has 8 divisors (see below), whose sum is σ = 4801871232. Its totient is φ = 3997640640.

The previous prime is 4399559977. The next prime is 4399559993. The reversal of 4399559989 is 9899559934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4399559989 - 2⁹ = 4399559477 is a prime.

It is a super-2 number, since 2×4399559989² = 38712256193619360242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399559189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74244 + ... + 119629.

It is an arithmetic number, because the mean of its divisors is an integer number (600233904).

Almost surely, 2^4399559989 is an apocalyptic number.

It is an amenable number.

4399559989 is a deficient number, since it is larger than the sum of its proper divisors (402311243).

4399559989 is a wasteful number, since it uses less digits than its factorization.

4399559989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195947.

The product of its digits is 141717600, while the sum is 70.

The square root of 4399559989 is about 66329.1790164781. The cubic root of 4399559989 is about 1638.5879165968.

Subtracting 4399559989 from its reverse (9899559934), we obtain a palindrome (5499999945).

It can be divided in two parts, 439955 and 9989, that added together give a palindrome (449944).

The spelling of 4399559989 in words is "four billion, three hundred ninety-nine million, five hundred fifty-nine thousand, nine hundred eighty-nine".