869935240 has 32 divisors (see below), whose sum is σ = 1964655000. Its totient is φ = 346676224.

The previous prime is 869935223. The next prime is 869935247. The reversal of 869935240 is 42539968.

It can be written as a sum of positive squares in 4 ways, for example, as 530565156 + 339370084 = 23034^2 + 18422^2 .

It is not an unprimeable number, because it can be changed into a prime (869935247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29665 + ... + 51184.

Almost surely, 2^869935240 is an apocalyptic number.

It is an amenable number.

869935240 is an abundant number, since it is smaller than the sum of its proper divisors (1094719760).

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

869935240 is a wasteful number, since it uses less digits than its factorization.

869935240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81129 (or 81125 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 869935240 is about 29494.6646022632. The cubic root of 869935240 is about 954.6165835651.

The spelling of 869935240 in words is "eight hundred sixty-nine million, nine hundred thirty-five thousand, two hundred forty".