844480880 has 40 divisors (see below), whose sum is σ = 2048788512. Its totient is φ = 323105024.

The previous prime is 844480877. The next prime is 844480907. The reversal of 844480880 is 88084448.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 227639 + ... + 231318.

Almost surely, 2^844480880 is an apocalyptic number.

844480880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

844480880 is an abundant number, since it is smaller than the sum of its proper divisors (1204307632).

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

844480880 is a wasteful number, since it uses less digits than its factorization.

844480880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458993 (or 458987 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 44.

The square root of 844480880 is about 29059.9532002376. The cubic root of 844480880 is about 945.2135534466.

The spelling of 844480880 in words is "eight hundred forty-four million, four hundred eighty thousand, eight hundred eighty".