850599144 has 96 divisors (see below), whose sum is σ = 2514876000. Its totient is φ = 268598592.

The previous prime is 850599143. The next prime is 850599149. The reversal of 850599144 is 441995058.

850599144 is a `hidden beast` number, since 8 + 50 + 599 + 1 + 4 + 4 = 666.

850599144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 850599144.

It is not an unprimeable number, because it can be changed into a prime (850599143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25422 + ... + 48450.

It is an arithmetic number, because the mean of its divisors is an integer number (26196625).

Almost surely, 2^850599144 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 850599144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257438000).

850599144 is an abundant number, since it is smaller than the sum of its proper divisors (1664276856).

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

850599144 is a wasteful number, since it uses less digits than its factorization.

850599144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23069 (or 23053 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 850599144 is about 29165.0328990042. The cubic root of 850599144 is about 947.4907535711.

The spelling of 850599144 in words is "eight hundred fifty million, five hundred ninety-nine thousand, one hundred forty-four".