844636338 has 48 divisors (see below), whose sum is σ = 2252367936. Its totient is φ = 222760800.

The previous prime is 844636307. The next prime is 844636349. The reversal of 844636338 is 833636448.

844636338 is a `hidden beast` number, since 8 + 4 + 4 + 6 + 3 + 633 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 844636293 and 844636302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256188 + ... + 259463.

It is an arithmetic number, because the mean of its divisors is an integer number (46924332).

Almost surely, 2^844636338 is an apocalyptic number.

844636338 is an abundant number, since it is smaller than the sum of its proper divisors (1407731598).

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

844636338 is a wasteful number, since it uses less digits than its factorization.

844636338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515679 (or 515676 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The square root of 844636338 is about 29062.6278577833. The cubic root of 844636338 is about 945.2715504150.

The spelling of 844636338 in words is "eight hundred forty-four million, six hundred thirty-six thousand, three hundred thirty-eight".