860040 has 48 divisors (see below), whose sum is σ = 2796300. Its totient is φ = 229248.

The previous prime is 860029. The next prime is 860051. The reversal of 860040 is 40068.

860040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (860029) and next prime (860051).

It can be written as a sum of positive squares in 2 ways, for example, as 820836 + 39204 = 906^2 + 198^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 859995 and 860022.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 860040.

It is an unprimeable number.

860040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 835 + ... + 1554.

2⁸⁶⁰⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

860040 is an abundant number, since it is smaller than the sum of its proper divisors (1936260).

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

860040 is a wasteful number, since it uses less digits than its factorization.

860040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 860040 is about 927.3834158534. The cubic root of 860040 is about 95.0983284776.

The spelling of 860040 in words is "eight hundred sixty thousand, forty".