844380355 has 32 divisors (see below), whose sum is σ = 1249920000. Its totient is φ = 533250432.

The previous prime is 844380353. The next prime is 844380371. The reversal of 844380355 is 553083448.

It is not a de Polignac number, because 844380355 - 2¹ = 844380353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (844380353) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 225186 + ... + 228904.

It is an arithmetic number, because the mean of its divisors is an integer number (39060000).

Almost surely, 2^844380355 is an apocalyptic number.

844380355 is a deficient number, since it is larger than the sum of its proper divisors (405539645).

844380355 is a wasteful number, since it uses less digits than its factorization.

844380355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243.

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 844380355 is about 29058.2235348275. The cubic root of 844380355 is about 945.1760466322.

The spelling of 844380355 in words is "eight hundred forty-four million, three hundred eighty thousand, three hundred fifty-five".