868208438 has 16 divisors (see below), whose sum is σ = 1349606880. Its totient is φ = 418392576.

The previous prime is 868208339. The next prime is 868208443. The reversal of 868208438 is 834802868.

It is a junction number, because it is equal to n+sod(n) for n = 868208392 and 868208401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20495 + ... + 46437.

It is an arithmetic number, because the mean of its divisors is an integer number (84350430).

Almost surely, 2^868208438 is an apocalyptic number.

868208438 is a deficient number, since it is larger than the sum of its proper divisors (481398442).

868208438 is a wasteful number, since it uses less digits than its factorization.

868208438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26551.

The product of its (nonzero) digits is 589824, while the sum is 47.

The square root of 868208438 is about 29465.3769363299. The cubic root of 868208438 is about 953.9845343214.

The spelling of 868208438 in words is "eight hundred sixty-eight million, two hundred eight thousand, four hundred thirty-eight".