850845384 has 160 divisors (see below), whose sum is σ = 2596176000. Its totient is φ = 259314048.

The previous prime is 850845383. The next prime is 850845449. The reversal of 850845384 is 483548058.

It is not an unprimeable number, because it can be changed into a prime (850845383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 355857 + ... + 358239.

It is an arithmetic number, because the mean of its divisors is an integer number (16226100).

Almost surely, 2^850845384 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 850845384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1298088000).

850845384 is an abundant number, since it is smaller than the sum of its proper divisors (1745330616).

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

850845384 is a wasteful number, since it uses less digits than its factorization.

850845384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449 (or 2436 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The square root of 850845384 is about 29169.2540871377. The cubic root of 850845384 is about 947.5821744692.

The spelling of 850845384 in words is "eight hundred fifty million, eight hundred forty-five thousand, three hundred eighty-four".