869255740 has 24 divisors (see below), whose sum is σ = 1839377232. Its totient is φ = 345047040.

The previous prime is 869255731. The next prime is 869255743. The reversal of 869255740 is 47552968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869255743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163269 + ... + 168508.

It is an arithmetic number, because the mean of its divisors is an integer number (76640718).

Almost surely, 2^869255740 is an apocalyptic number.

It is an amenable number.

869255740 is an abundant number, since it is smaller than the sum of its proper divisors (970121492).

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

869255740 is a wasteful number, since it uses less digits than its factorization.

869255740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331917 (or 331915 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 869255740 is about 29483.1433195309. The cubic root of 869255740 is about 954.3679708331.

It can be divided in two parts, 86925 and 5740, that added together give a triangular number (92665 = T₄₃₀).

The spelling of 869255740 in words is "eight hundred sixty-nine million, two hundred fifty-five thousand, seven hundred forty".