844890468 has 12 divisors (see below), whose sum is σ = 1971411120. Its totient is φ = 281630152.

The previous prime is 844890427. The next prime is 844890469. The reversal of 844890468 is 864098448.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 844890468.

It is not an unprimeable number, because it can be changed into a prime (844890469) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35203758 + ... + 35203781.

It is an arithmetic number, because the mean of its divisors is an integer number (164284260).

Almost surely, 2^844890468 is an apocalyptic number.

It is an amenable number.

844890468 is an abundant number, since it is smaller than the sum of its proper divisors (1126520652).

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

844890468 is a wasteful number, since it uses less digits than its factorization.

844890468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70407546 (or 70407544 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 51.

The square root of 844890468 is about 29066.9996387656. Note that the first 3 decimals coincide. The cubic root of 844890468 is about 945.3663437835.

The spelling of 844890468 in words is "eight hundred forty-four million, eight hundred ninety thousand, four hundred sixty-eight".