850171140 has 480 divisors, whose sum is σ = 3369569280. Its totient is φ = 174680064.

The previous prime is 850171123. The next prime is 850171141. The reversal of 850171140 is 41171058.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850171141) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 10761621 + ... + 10761699.

It is an arithmetic number, because the mean of its divisors is an integer number (7019936).

Almost surely, 2^850171140 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 850171140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1684784640).

850171140 is an abundant number, since it is smaller than the sum of its proper divisors (2519398140).

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

850171140 is a wasteful number, since it uses less digits than its factorization.

850171140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 850171140 is about 29157.6943532921. The cubic root of 850171140 is about 947.3318076201.

The spelling of 850171140 in words is "eight hundred fifty million, one hundred seventy-one thousand, one hundred forty".