844013842 has 24 divisors (see below), whose sum is σ = 1510721856. Its totient is φ = 345779544.

The previous prime is 844013813. The next prime is 844013851. The reversal of 844013842 is 248310448.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 844013798 and 844013807.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 520509 + ... + 522127.

It is an arithmetic number, because the mean of its divisors is an integer number (62946744).

Almost surely, 2^844013842 is an apocalyptic number.

844013842 is a deficient number, since it is larger than the sum of its proper divisors (666708014).

844013842 is an equidigital number, since it uses as much as digits as its factorization.

844013842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270 (or 1651 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 844013842 is about 29051.9163223358. The cubic root of 844013842 is about 945.0392719978.

The spelling of 844013842 in words is "eight hundred forty-four million, thirteen thousand, eight hundred forty-two".