858070444 has 96 divisors (see below), whose sum is σ = 2050997760. Its totient is φ = 303744000.

The previous prime is 858070417. The next prime is 858070481. The reversal of 858070444 is 444070858.

858070444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 858070397 and 858070406.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149019 + ... + 154669.

It is an arithmetic number, because the mean of its divisors is an integer number (21364560).

Almost surely, 2^858070444 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 858070444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025498880).

858070444 is an abundant number, since it is smaller than the sum of its proper divisors (1192927316).

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

858070444 is a wasteful number, since it uses less digits than its factorization.

858070444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5719 (or 5717 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 858070444 is about 29292.8394663269. The cubic root of 858070444 is about 950.2567889390.

The spelling of 858070444 in words is "eight hundred fifty-eight million, seventy thousand, four hundred forty-four".