844842258 has 128 divisors (see below), whose sum is σ = 2153491200. Its totient is φ = 243357696.

The previous prime is 844842247. The next prime is 844842283. The reversal of 844842258 is 852248448.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1293460 + ... + 1294112.

It is an arithmetic number, because the mean of its divisors is an integer number (16824150).

Almost surely, 2^844842258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 844842258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076745600).

844842258 is an abundant number, since it is smaller than the sum of its proper divisors (1308648942).

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

844842258 is a wasteful number, since it uses less digits than its factorization.

844842258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793 (or 787 counting only the distinct ones).

The product of its digits is 655360, while the sum is 45.

The square root of 844842258 is about 29066.1703359765. The cubic root of 844842258 is about 945.3483623685.

The spelling of 844842258 in words is "eight hundred forty-four million, eight hundred forty-two thousand, two hundred fifty-eight".