865230940 has 48 divisors (see below), whose sum is σ = 2132690112. Its totient is φ = 288631296.

The previous prime is 865230917. The next prime is 865230973. The reversal of 865230940 is 49032568.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 865230940.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78337 + ... + 88696.

It is an arithmetic number, because the mean of its divisors is an integer number (44431044).

Almost surely, 2^865230940 is an apocalyptic number.

It is an amenable number.

865230940 is an abundant number, since it is smaller than the sum of its proper divisors (1267459172).

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

865230940 is a wasteful number, since it uses less digits than its factorization.

865230940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167086 (or 167084 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 865230940 is about 29414.8081754752. The cubic root of 865230940 is about 952.8927303089.

The spelling of 865230940 in words is "eight hundred sixty-five million, two hundred thirty thousand, nine hundred forty".