844449678 has 32 divisors (see below), whose sum is σ = 1893175200. Its totient is φ = 278990208.

The previous prime is 844449677. The next prime is 844449743. The reversal of 844449678 is 876944448.

844449678 is a `hidden beast` number, since 84 + 4 + 4 + 496 + 78 = 666.

844449678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844449677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63093 + ... + 75296.

It is an arithmetic number, because the mean of its divisors is an integer number (59161725).

Almost surely, 2^844449678 is an apocalyptic number.

844449678 is an abundant number, since it is smaller than the sum of its proper divisors (1048725522).

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

844449678 is a wasteful number, since it uses less digits than its factorization.

844449678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138513 (or 138507 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The square root of 844449678 is about 29059.4163396308. The cubic root of 844449678 is about 945.2019120081.

The spelling of 844449678 in words is "eight hundred forty-four million, four hundred forty-nine thousand, six hundred seventy-eight".