544133664 has 144 divisors (see below), whose sum is σ = 1608647040. Its totient is φ = 174343680.

The previous prime is 544133663. The next prime is 544133677. The reversal of 544133664 is 466331445.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544133663) 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 23 ways as a sum of consecutive naturals, for example, 825367 + ... + 826025.

It is an arithmetic number, because the mean of its divisors is an integer number (11171160).

Almost surely, 2^544133664 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 544133664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804323520).

544133664 is an abundant number, since it is smaller than the sum of its proper divisors (1064513376).

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

544133664 is a wasteful number, since it uses less digits than its factorization.

544133664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 772 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 544133664 is about 23326.6728017521. The cubic root of 544133664 is about 816.3978740195.

The spelling of 544133664 in words is "five hundred forty-four million, one hundred thirty-three thousand, six hundred sixty-four".