850540 has 36 divisors (see below), whose sum is σ = 1908144. Its totient is φ = 317856.

The previous prime is 850537. The next prime is 850567. The reversal of 850540 is 45058.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19759 + ... + 19801.

It is an arithmetic number, because the mean of its divisors is an integer number (53004).

2⁸⁵⁰⁵⁴⁰ 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 850540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (954072).

850540 is an abundant number, since it is smaller than the sum of its proper divisors (1057604).

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

850540 is a wasteful number, since it uses less digits than its factorization.

850540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 850540 is about 922.2472553497. The cubic root of 850540 is about 94.7468792701.

Adding to 850540 its reverse (45058), we get a palindrome (895598).

The spelling of 850540 in words is "eight hundred fifty thousand, five hundred forty".