8507140 has 48 divisors (see below), whose sum is σ = 19160064. Its totient is φ = 3161600.

The previous prime is 8507137. The next prime is 8507159. The reversal of 8507140 is 417058.

8507140 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 15 ways as a sum of consecutive naturals, for example, 44445 + ... + 44635.

It is an arithmetic number, because the mean of its divisors is an integer number (399168).

Almost surely, 2^8507140 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 8507140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9580032).

8507140 is an abundant number, since it is smaller than the sum of its proper divisors (10652924).

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

8507140 is a wasteful number, since it uses less digits than its factorization.

8507140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 346 counting only the distinct ones).

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

The square root of 8507140 is about 2916.7001902835. The cubic root of 8507140 is about 204.1398822747.

The spelling of 8507140 in words is "eight million, five hundred seven thousand, one hundred forty".