859140 has 96 divisors (see below), whose sum is σ = 2808960. Its totient is φ = 217728.

The previous prime is 859121. The next prime is 859181. The reversal of 859140 is 41958.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 859140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19959 + ... + 20001.

It is an arithmetic number, because the mean of its divisors is an integer number (29260).

2⁸⁵⁹¹⁴⁰ 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 859140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1404480).

859140 is an abundant number, since it is smaller than the sum of its proper divisors (1949820).

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

859140 is a wasteful number, since it uses less digits than its factorization.

859140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 859140 is about 926.8980526466. The cubic root of 859140 is about 95.0651446070.

It can be divided in two parts, 859 and 140, that added together give a palindrome (999).

The spelling of 859140 in words is "eight hundred fifty-nine thousand, one hundred forty".