842825286 has 48 divisors (see below), whose sum is σ = 1945236384. Its totient is φ = 262816512.

The previous prime is 842825273. The next prime is 842825287. The reversal of 842825286 is 682528248.

842825286 is a `hidden beast` number, since 8 + 42 + 82 + 528 + 6 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842825287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42856 + ... + 59348.

It is an arithmetic number, because the mean of its divisors is an integer number (40525758).

Almost surely, 2^842825286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842825286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (972618192).

842825286 is an abundant number, since it is smaller than the sum of its proper divisors (1102411098).

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

842825286 is a wasteful number, since it uses less digits than its factorization.

842825286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16685 (or 16682 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The square root of 842825286 is about 29031.4533911067. The cubic root of 842825286 is about 944.5954563058.

The spelling of 842825286 in words is "eight hundred forty-two million, eight hundred twenty-five thousand, two hundred eighty-six".