868040868 has 24 divisors (see below), whose sum is σ = 2080171072. Its totient is φ = 281526624.

The previous prime is 868040867. The next prime is 868040879.

868040868 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (868040867) 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, 977080 + ... + 977967.

Almost surely, 2^868040868 is an apocalyptic number.

It is an amenable number.

868040868 is an abundant number, since it is smaller than the sum of its proper divisors (1212130204).

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

868040868 is a wasteful number, since it uses less digits than its factorization.

868040868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955091 (or 1955089 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 48.

The square root of 868040868 is about 29462.5332923019. The cubic root of 868040868 is about 953.9231552535.

The spelling of 868040868 in words is "eight hundred sixty-eight million, forty thousand, eight hundred sixty-eight".