855443242 has 16 divisors (see below), whose sum is σ = 1309608000. Its totient is φ = 418959520.

The previous prime is 855443191. The next prime is 855443257. The reversal of 855443242 is 242344558.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20259 + ... + 46057.

It is an arithmetic number, because the mean of its divisors is an integer number (81850500).

Almost surely, 2^855443242 is an apocalyptic number.

855443242 is a deficient number, since it is larger than the sum of its proper divisors (454164758).

855443242 is a wasteful number, since it uses less digits than its factorization.

855443242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26141.

The product of its digits is 153600, while the sum is 37.

The square root of 855443242 is about 29247.9613306637. The cubic root of 855443242 is about 949.2859794503.

The spelling of 855443242 in words is "eight hundred fifty-five million, four hundred forty-three thousand, two hundred forty-two".