844528668 has 24 divisors (see below), whose sum is σ = 1974835968. Its totient is φ = 280899696.

The previous prime is 844528667. The next prime is 844528673. The reversal of 844528668 is 866825448.

844528668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 844528668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844528667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70446 + ... + 81557.

It is an arithmetic number, because the mean of its divisors is an integer number (82284832).

Almost surely, 2^844528668 is an apocalyptic number.

It is an amenable number.

844528668 is an abundant number, since it is smaller than the sum of its proper divisors (1130307300).

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

844528668 is a wasteful number, since it uses less digits than its factorization.

844528668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152473 (or 152471 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 51.

The square root of 844528668 is about 29060.7754197991. The cubic root of 844528668 is about 945.2313825510.

The spelling of 844528668 in words is "eight hundred forty-four million, five hundred twenty-eight thousand, six hundred sixty-eight".