544402455040 has 80 divisors (see below), whose sum is σ = 1307222160552. Its totient is φ = 217438633984.

The previous prime is 544402455031. The next prime is 544402455041. The reversal of 544402455040 is 40554204445.

It can be written as a sum of positive squares in 4 ways, for example, as 530380105984 + 14022349056 = 728272^2 + 118416^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (544402455041) 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 7 ways as a sum of consecutive naturals, for example, 1576062 + ... + 1890178.

Almost surely, 2^544402455040 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 544402455040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653611080276).

544402455040 is an abundant number, since it is smaller than the sum of its proper divisors (762819705512).

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

544402455040 is an equidigital number, since it uses as much as digits as its factorization.

544402455040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314817 (or 314801 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 37.

Adding to 544402455040 its reverse (40554204445), we get a palindrome (584956659485).

The spelling of 544402455040 in words is "five hundred forty-four billion, four hundred two million, four hundred fifty-five thousand, forty".