868320381 has 16 divisors (see below), whose sum is σ = 1166144000. Its totient is φ = 574702128.

The previous prime is 868320367. The next prime is 868320391. The reversal of 868320381 is 183023868.

868320381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-868320381 is a prime.

It is a super-2 number, since 2×868320381² = 1507960568119970322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868320361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325230 + ... + 327888.

It is an arithmetic number, because the mean of its divisors is an integer number (72884000).

Almost surely, 2^868320381 is an apocalyptic number.

It is an amenable number.

868320381 is a deficient number, since it is larger than the sum of its proper divisors (297823619).

868320381 is a wasteful number, since it uses less digits than its factorization.

868320381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 868320381 is about 29467.2764435399. The cubic root of 868320381 is about 954.0255334243.

The spelling of 868320381 in words is "eight hundred sixty-eight million, three hundred twenty thousand, three hundred eighty-one".