858052900 has 72 divisors (see below), whose sum is σ = 1977060960. Its totient is φ = 322122240.

The previous prime is 858052861. The next prime is 858052907. The reversal of 858052900 is 9250858.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 858052900.

It is not an unprimeable number, because it can be changed into a prime (858052907) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1160731 + ... + 1161469.

It is an arithmetic number, because the mean of its divisors is an integer number (27459180).

Almost surely, 2^858052900 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 858052900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988530480).

858052900 is an abundant number, since it is smaller than the sum of its proper divisors (1119008060).

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

858052900 is a wasteful number, since it uses less digits than its factorization.

858052900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 858052900 is about 29292.5400059469. The cubic root of 858052900 is about 950.2503126181.

The spelling of 858052900 in words is "eight hundred fifty-eight million, fifty-two thousand, nine hundred".