858219080 has 64 divisors (see below), whose sum is σ = 1971864000. Its totient is φ = 336086784.

The previous prime is 858219059. The next prime is 858219091. The reversal of 858219080 is 80912858.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478826 + ... + 480614.

It is an arithmetic number, because the mean of its divisors is an integer number (30810375).

Almost surely, 2^858219080 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 858219080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985932000).

858219080 is an abundant number, since it is smaller than the sum of its proper divisors (1113644920).

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

858219080 is a wasteful number, since it uses less digits than its factorization.

858219080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 858219080 is about 29295.3764270064. The cubic root of 858219080 is about 950.3116539813.

The spelling of 858219080 in words is "eight hundred fifty-eight million, two hundred nineteen thousand, eighty".