8470140 has 144 divisors (see below), whose sum is σ = 28651392. Its totient is φ = 1862784.

The previous prime is 8470139. The next prime is 8470153. The reversal of 8470140 is 410748.

8470140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 8470140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126387 + ... + 126453.

It is an arithmetic number, because the mean of its divisors is an integer number (198968).

Almost surely, 2^8470140 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 8470140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14325696).

8470140 is an abundant number, since it is smaller than the sum of its proper divisors (20181252).

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

8470140 is a wasteful number, since it uses less digits than its factorization.

8470140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 8470140 is about 2910.3504943563. The cubic root of 8470140 is about 203.8434978066.

Adding to 8470140 its reverse (410748), we get a palindrome (8880888).

The spelling of 8470140 in words is "eight million, four hundred seventy thousand, one hundred forty".