855541438 has 4 divisors (see below), whose sum is σ = 1283312160. Its totient is φ = 427770718.

The previous prime is 855541433. The next prime is 855541447. The reversal of 855541438 is 834145558.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 855541394 and 855541403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855541433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213885358 + ... + 213885361.

It is an arithmetic number, because the mean of its divisors is an integer number (320828040).

Almost surely, 2^855541438 is an apocalyptic number.

855541438 is a deficient number, since it is larger than the sum of its proper divisors (427770722).

855541438 is a wasteful number, since it uses less digits than its factorization.

855541438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427770721.

The product of its digits is 384000, while the sum is 43.

The square root of 855541438 is about 29249.6399635961. The cubic root of 855541438 is about 949.3223007845.

The spelling of 855541438 in words is "eight hundred fifty-five million, five hundred forty-one thousand, four hundred thirty-eight".