394884572 has 24 divisors (see below), whose sum is σ = 732627840. Its totient is φ = 185906880.

The previous prime is 394884557. The next prime is 394884577. The reversal of 394884572 is 275488493.

It is a self number, because there is not a number n which added to its sum of digits gives 394884572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394884577) 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, 38447 + ... + 47622.

It is an arithmetic number, because the mean of its divisors is an integer number (30526160).

Almost surely, 2^394884572 is an apocalyptic number.

It is an amenable number.

394884572 is a deficient number, since it is larger than the sum of its proper divisors (337743268).

394884572 is a wasteful number, since it uses less digits than its factorization.

394884572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86141 (or 86139 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 394884572 is about 19871.7027956841. The cubic root of 394884572 is about 733.6519149304.

The spelling of 394884572 in words is "three hundred ninety-four million, eight hundred eighty-four thousand, five hundred seventy-two".