928909044 has 72 divisors (see below), whose sum is σ = 2698637760. Its totient is φ = 263907072.

The previous prime is 928909043. The next prime is 928909057. The reversal of 928909044 is 440909829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (928909043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34812 + ... + 55404.

It is an arithmetic number, because the mean of its divisors is an integer number (37481080).

Almost surely, 2^928909044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 928909044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349318880).

928909044 is an abundant number, since it is smaller than the sum of its proper divisors (1769728716).

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

928909044 is a wasteful number, since it uses less digits than its factorization.

928909044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20789 (or 20784 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 928909044 is about 30478.0091869531. The cubic root of 928909044 is about 975.7181801324.

The spelling of 928909044 in words is "nine hundred twenty-eight million, nine hundred nine thousand, forty-four".