869653140 has 48 divisors (see below), whose sum is σ = 2436342720. Its totient is φ = 231782400.

The previous prime is 869653129. The next prime is 869653153. The reversal of 869653140 is 41356968.

It is a junction number, because it is equal to n+sod(n) for n = 869653092 and 869653101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178740 + ... + 183540.

It is an arithmetic number, because the mean of its divisors is an integer number (50757140).

Almost surely, 2^869653140 is an apocalyptic number.

It is an amenable number.

869653140 is an abundant number, since it is smaller than the sum of its proper divisors (1566689580).

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

869653140 is a wasteful number, since it uses less digits than its factorization.

869653140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832 (or 7830 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 869653140 is about 29489.8819936601. The cubic root of 869653140 is about 954.5133856718.

The spelling of 869653140 in words is "eight hundred sixty-nine million, six hundred fifty-three thousand, one hundred forty".