544040644 has 96 divisors (see below), whose sum is σ = 1162377216. Its totient is φ = 217969920.

The previous prime is 544040633. The next prime is 544040657. The reversal of 544040644 is 446040445.

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 31 ways as a sum of consecutive naturals, for example, 5084439 + ... + 5084545.

It is an arithmetic number, because the mean of its divisors is an integer number (12108096).

Almost surely, 2^544040644 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 544040644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (581188608).

544040644 is an abundant number, since it is smaller than the sum of its proper divisors (618336572).

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

544040644 is a wasteful number, since it uses less digits than its factorization.

544040644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 544040644 is about 23324.6788616692. The cubic root of 544040644 is about 816.3513501210.

The spelling of 544040644 in words is "five hundred forty-four million, forty thousand, six hundred forty-four".