8570140 has 36 divisors (see below), whose sum is σ = 19010376. Its totient is φ = 3244896.

The previous prime is 8570137. The next prime is 8570161. The reversal of 8570140 is 410758.

8570140 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 6627 + ... + 7813.

It is an arithmetic number, because the mean of its divisors is an integer number (528066).

Almost surely, 2^8570140 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 8570140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9505188).

8570140 is an abundant number, since it is smaller than the sum of its proper divisors (10440236).

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

8570140 is a wasteful number, since it uses less digits than its factorization.

8570140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 8570140 is about 2927.4801451077. The cubic root of 8570140 is about 204.6425657245.

Adding to 8570140 its reverse (410758), we get a palindrome (8980898).

It can be divided in two parts, 85 and 70140, that added together give a square (70225 = 265²).

The spelling of 8570140 in words is "eight million, five hundred seventy thousand, one hundred forty".