855838308 has 72 divisors (see below), whose sum is σ = 2169870528. Its totient is φ = 262424448.

The previous prime is 855838307. The next prime is 855838367. The reversal of 855838308 is 803838558.

It is not an unprimeable number, because it can be changed into a prime (855838307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 804585 + ... + 805647.

Almost surely, 2^855838308 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 855838308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1084935264).

855838308 is an abundant number, since it is smaller than the sum of its proper divisors (1314032220).

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

855838308 is a wasteful number, since it uses less digits than its factorization.

855838308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The square root of 855838308 is about 29254.7142867607. The cubic root of 855838308 is about 949.4320919677.

The spelling of 855838308 in words is "eight hundred fifty-five million, eight hundred thirty-eight thousand, three hundred eight".