856286448 has 20 divisors (see below), whose sum is σ = 2212073448. Its totient is φ = 285428800.

The previous prime is 856286443. The next prime is 856286479. The reversal of 856286448 is 844682658.

It is a self number, because there is not a number n which added to its sum of digits gives 856286448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856286443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8919603 + ... + 8919698.

Almost surely, 2^856286448 is an apocalyptic number.

It is an amenable number.

856286448 is an abundant number, since it is smaller than the sum of its proper divisors (1355787000).

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

856286448 is a wasteful number, since it uses less digits than its factorization.

856286448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17839312 (or 17839306 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 51.

The square root of 856286448 is about 29262.3725627298. The cubic root of 856286448 is about 949.5977791274.

The spelling of 856286448 in words is "eight hundred fifty-six million, two hundred eighty-six thousand, four hundred forty-eight".