868190386 has 16 divisors (see below), whose sum is σ = 1499037120. Its totient is φ = 369403920.

The previous prime is 868190383. The next prime is 868190419. The reversal of 868190386 is 683091868.

It is not an unprimeable number, because it can be changed into a prime (868190381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221125 + ... + 225016.

It is an arithmetic number, because the mean of its divisors is an integer number (93689820).

Almost surely, 2^868190386 is an apocalyptic number.

868190386 is a deficient number, since it is larger than the sum of its proper divisors (630846734).

868190386 is a wasteful number, since it uses less digits than its factorization.

868190386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446289.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 868190386 is about 29465.0706091127. The cubic root of 868190386 is about 953.9779224498.

The spelling of 868190386 in words is "eight hundred sixty-eight million, one hundred ninety thousand, three hundred eighty-six".