855905304 has 64 divisors (see below), whose sum is σ = 2217715200. Its totient is φ = 274945664.

The previous prime is 855905291. The next prime is 855905311. The reversal of 855905304 is 403509558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 574849 + ... + 576335.

It is an arithmetic number, because the mean of its divisors is an integer number (34651800).

Almost surely, 2^855905304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855905304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108857600).

855905304 is an abundant number, since it is smaller than the sum of its proper divisors (1361809896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855905304 is a wasteful number, since it uses less digits than its factorization.

855905304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352 (or 2348 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 855905304 is about 29255.8593105723. The cubic root of 855905304 is about 949.4568655307.

The spelling of 855905304 in words is "eight hundred fifty-five million, nine hundred five thousand, three hundred four".