853404242 has 8 divisors (see below), whose sum is σ = 1280235132. Its totient is φ = 426659200.

The previous prime is 853404241. The next prime is 853404263. The reversal of 853404242 is 242404358.

It can be written as a sum of positive squares in 2 ways, for example, as 655411201 + 197993041 = 25601^2 + 14071^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 853404199 and 853404208.

It is not an unprimeable number, because it can be changed into a prime (853404241) 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 3 ways as a sum of consecutive naturals, for example, 17642 + ... + 44922.

Almost surely, 2^853404242 is an apocalyptic number.

853404242 is a deficient number, since it is larger than the sum of its proper divisors (426830890).

853404242 is a wasteful number, since it uses less digits than its factorization.

853404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42924.

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 853404242 is about 29213.0834045296. The cubic root of 853404242 is about 948.5311528199.

The spelling of 853404242 in words is "eight hundred fifty-three million, four hundred four thousand, two hundred forty-two".