544487328 has 288 divisors, whose sum is σ = 1978808832. Its totient is φ = 137894400.

The previous prime is 544487323. The next prime is 544487347. The reversal of 544487328 is 823784445.

It is a happy number.

544487328 is a `hidden beast` number, since 544 + 4 + 87 + 3 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544487323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 953283 + ... + 953853.

It is an arithmetic number, because the mean of its divisors is an integer number (6870864).

Almost surely, 2^544487328 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 544487328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989404416).

544487328 is an abundant number, since it is smaller than the sum of its proper divisors (1434321504).

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

544487328 is a wasteful number, since it uses less digits than its factorization.

544487328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 637 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The square root of 544487328 is about 23334.2522485723. The cubic root of 544487328 is about 816.5747104755.

It can be divided in two parts, 54448 and 7328, that added together give a triangular number (61776 = T₃₅₁).

The spelling of 544487328 in words is "five hundred forty-four million, four hundred eighty-seven thousand, three hundred twenty-eight".