858318344 has 16 divisors (see below), whose sum is σ = 1733143020. Its totient is φ = 396146880.

The previous prime is 858318337. The next prime is 858318353. The reversal of 858318344 is 443813858.

It can be written as a sum of positive squares in 2 ways, for example, as 850422244 + 7896100 = 29162^2 + 2810^2 .

It is a junction number, because it is equal to n+sod(n) for n = 858318295 and 858318304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4126427 + ... + 4126634.

Almost surely, 2^858318344 is an apocalyptic number.

It is an amenable number.

858318344 is an abundant number, since it is smaller than the sum of its proper divisors (874824676).

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

858318344 is a wasteful number, since it uses less digits than its factorization.

858318344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8253080 (or 8253076 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 858318344 is about 29297.0705702806. The cubic root of 858318344 is about 950.3482911297.

The spelling of 858318344 in words is "eight hundred fifty-eight million, three hundred eighteen thousand, three hundred forty-four".