544324440 has 128 divisors (see below), whose sum is σ = 1858982400. Its totient is φ = 126213120.

The previous prime is 544324439. The next prime is 544324447. The reversal of 544324440 is 44423445.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 544324398 and 544324407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544324447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21396 + ... + 39324.

It is an arithmetic number, because the mean of its divisors is an integer number (14523300).

Almost surely, 2^544324440 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 544324440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (929491200).

544324440 is an abundant number, since it is smaller than the sum of its proper divisors (1314657960).

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

544324440 is a wasteful number, since it uses less digits than its factorization.

544324440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17977 (or 17973 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

The square root of 544324440 is about 23330.7616678067. The cubic root of 544324440 is about 816.4932739384.

Adding to 544324440 its reverse (44423445), we get a palindrome (588747885).

The spelling of 544324440 in words is "five hundred forty-four million, three hundred twenty-four thousand, four hundred forty".