858091122 has 24 divisors (see below), whose sum is σ = 2124797376. Its totient is φ = 245168856.

The previous prime is 858091111. The next prime is 858091123. The reversal of 858091122 is 221190858.

It is not an unprimeable number, because it can be changed into a prime (858091123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3404998 + ... + 3405249.

It is an arithmetic number, because the mean of its divisors is an integer number (88533224).

Almost surely, 2^858091122 is an apocalyptic number.

858091122 is an abundant number, since it is smaller than the sum of its proper divisors (1266706254).

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

858091122 is a wasteful number, since it uses less digits than its factorization.

858091122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810262 (or 6810259 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 858091122 is about 29293.1924173519. The cubic root of 858091122 is about 950.2644220544.

The spelling of 858091122 in words is "eight hundred fifty-eight million, ninety-one thousand, one hundred twenty-two".