868206040 has 32 divisors (see below), whose sum is σ = 2103731280. Its totient is φ = 320568192.

The previous prime is 868206029. The next prime is 868206067. The reversal of 868206040 is 40602868.

It is a junction number, because it is equal to n+sod(n) for n = 868205987 and 868206005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834294 + ... + 835333.

Almost surely, 2^868206040 is an apocalyptic number.

It is an amenable number.

868206040 is an abundant number, since it is smaller than the sum of its proper divisors (1235525240).

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

868206040 is a wasteful number, since it uses less digits than its factorization.

868206040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669651 (or 1669647 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 868206040 is about 29465.3362444755. The cubic root of 868206040 is about 953.9836560158.

The spelling of 868206040 in words is "eight hundred sixty-eight million, two hundred six thousand, forty".