4399400850 has 96 divisors (see below), whose sum is σ = 11794870080. Its totient is φ = 1078775040.

The previous prime is 4399400843. The next prime is 4399400857. The reversal of 4399400850 is 580049934.

It is an interprime number because it is at equal distance from previous prime (4399400843) and next prime (4399400857).

It is not an unprimeable number, because it can be changed into a prime (4399400857) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 520357 + ... + 528743.

It is an arithmetic number, because the mean of its divisors is an integer number (122863230).

Almost surely, 2^4399400850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4399400850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5897435040).

4399400850 is an abundant number, since it is smaller than the sum of its proper divisors (7395469230).

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

4399400850 is a wasteful number, since it uses less digits than its factorization.

4399400850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8684 (or 8679 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 4399400850 is about 66327.9793902995. The cubic root of 4399400850 is about 1638.5681595918.

The spelling of 4399400850 in words is "four billion, three hundred ninety-nine million, four hundred thousand, eight hundred fifty".