858916290 has 16 divisors (see below), whose sum is σ = 2061399168. Its totient is φ = 229044336.

The previous prime is 858916273. The next prime is 858916291. The reversal of 858916290 is 92619858.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (858916291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14315242 + ... + 14315301.

It is an arithmetic number, because the mean of its divisors is an integer number (128837448).

Almost surely, 2^858916290 is an apocalyptic number.

858916290 is an abundant number, since it is smaller than the sum of its proper divisors (1202482878).

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

858916290 is a wasteful number, since it uses less digits than its factorization.

858916290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28630553.

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 858916290 is about 29307.2736705412. The cubic root of 858916290 is about 950.5689260708.

The spelling of 858916290 in words is "eight hundred fifty-eight million, nine hundred sixteen thousand, two hundred ninety".