854385188 has 6 divisors (see below), whose sum is σ = 1495174086. Its totient is φ = 427192592.

The previous prime is 854385173. The next prime is 854385199. The reversal of 854385188 is 881583458.

It can be written as a sum of positive squares in only one way, i.e., 573219364 + 281165824 = 23942^2 + 16768^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106798145 + ... + 106798152.

It is an arithmetic number, because the mean of its divisors is an integer number (249195681).

Almost surely, 2^854385188 is an apocalyptic number.

It is an amenable number.

854385188 is a deficient number, since it is larger than the sum of its proper divisors (640788898).

854385188 is a wasteful number, since it uses less digits than its factorization.

854385188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213596301 (or 213596299 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 50.

The square root of 854385188 is about 29229.8680804413. The cubic root of 854385188 is about 948.8944435547.

It can be divided in two parts, 85438 and 5188, that multiplied together give a palindrome (443252344).

The spelling of 854385188 in words is "eight hundred fifty-four million, three hundred eighty-five thousand, one hundred eighty-eight".