870140 has 24 divisors (see below), whose sum is σ = 1846320. Its totient is φ = 344448.

The previous prime is 870137. The next prime is 870151. The reversal of 870140 is 41078.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 870140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2624 + ... + 2936.

It is an arithmetic number, because the mean of its divisors is an integer number (76930).

2⁸⁷⁰¹⁴⁰ is an apocalyptic number.

It is an amenable number.

870140 is an abundant number, since it is smaller than the sum of its proper divisors (976180).

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

870140 is a wasteful number, since it uses less digits than its factorization.

870140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 870140 is about 932.8129501674. The cubic root of 870140 is about 95.4691474947.

The spelling of 870140 in words is "eight hundred seventy thousand, one hundred forty".