855658280 has 64 divisors (see below), whose sum is σ = 2104289280. Its totient is φ = 311731200.

The previous prime is 855658241. The next prime is 855658283. The reversal of 855658280 is 82856558.

It is not an unprimeable number, because it can be changed into a prime (855658283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785 + ... + 41375.

It is an arithmetic number, because the mean of its divisors is an integer number (32879520).

Almost surely, 2^855658280 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 855658280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1052144640).

855658280 is an abundant number, since it is smaller than the sum of its proper divisors (1248631000).

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

855658280 is a wasteful number, since it uses less digits than its factorization.

855658280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40650 (or 40646 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 47.

The square root of 855658280 is about 29251.6372191370. The cubic root of 855658280 is about 949.3655153939.

The spelling of 855658280 in words is "eight hundred fifty-five million, six hundred fifty-eight thousand, two hundred eighty".