844160478 has 48 divisors (see below), whose sum is σ = 1998422400. Its totient is φ = 232862112.

The previous prime is 844160413. The next prime is 844160489. The reversal of 844160478 is 874061448.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23373 + ... + 47271.

It is an arithmetic number, because the mean of its divisors is an integer number (41633800).

Almost surely, 2^844160478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 844160478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (999211200).

844160478 is an abundant number, since it is smaller than the sum of its proper divisors (1154261922).

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

844160478 is a wasteful number, since it uses less digits than its factorization.

844160478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23969 (or 23940 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 844160478 is about 29054.4399016742. The cubic root of 844160478 is about 945.0939980964.

The spelling of 844160478 in words is "eight hundred forty-four million, one hundred sixty thousand, four hundred seventy-eight".