394888886 has 32 divisors (see below), whose sum is σ = 747947520. Its totient is φ = 152355456.

The previous prime is 394888883. The next prime is 394888931. The reversal of 394888886 is 688888493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394888883) 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, 30596 + ... + 41543.

It is an arithmetic number, because the mean of its divisors is an integer number (23373360).

Almost surely, 2^394888886 is an apocalyptic number.

394888886 is a deficient number, since it is larger than the sum of its proper divisors (353058634).

394888886 is a wasteful number, since it uses less digits than its factorization.

394888886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72188.

The product of its digits is 21233664, while the sum is 62.

The square root of 394888886 is about 19871.8113416971. The cubic root of 394888886 is about 733.6545865659.

The spelling of 394888886 in words is "three hundred ninety-four million, eight hundred eighty-eight thousand, eight hundred eighty-six".