4399399312 has 120 divisors (see below), whose sum is σ = 10856749568. Its totient is φ = 1690191360.

The previous prime is 4399399283. The next prime is 4399399339. The reversal of 4399399312 is 2139939934.

It is a self number, because there is not a number n which added to its sum of digits gives 4399399312.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 987073 + ... + 991519.

Almost surely, 2^4399399312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4399399312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5428374784).

4399399312 is an abundant number, since it is smaller than the sum of its proper divisors (6457350256).

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

4399399312 is a wasteful number, since it uses less digits than its factorization.

4399399312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4557 (or 4540 counting only the distinct ones).

The product of its digits is 1417176, while the sum is 52.

The square root of 4399399312 is about 66327.9677963979. The cubic root of 4399399312 is about 1638.5679686477.

The spelling of 4399399312 in words is "four billion, three hundred ninety-nine million, three hundred ninety-nine thousand, three hundred twelve".