858000132 has 144 divisors (see below), whose sum is σ = 2520528192. Its totient is φ = 243210240.

The previous prime is 858000131. The next prime is 858000137. The reversal of 858000132 is 231000858.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 858000096 and 858000105.

It is not an unprimeable number, because it can be changed into a prime (858000131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1568283 + ... + 1568829.

It is an arithmetic number, because the mean of its divisors is an integer number (17503668).

Almost surely, 2^858000132 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 858000132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260264096).

858000132 is an abundant number, since it is smaller than the sum of its proper divisors (1662528060).

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

858000132 is a wasteful number, since it uses less digits than its factorization.

858000132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 858000132 is about 29291.6392849564. The cubic root of 858000132 is about 950.2308329192.

The spelling of 858000132 in words is "eight hundred fifty-eight million, one hundred thirty-two", and thus it is an aban number.