1040544544 has 48 divisors (see below), whose sum is σ = 2217527928. Its totient is φ = 477775872.

The previous prime is 1040544539. The next prime is 1040544553. The reversal of 1040544544 is 4454450401.

It can be written as a sum of positive squares in 4 ways, for example, as 863654544 + 176890000 = 29388^2 + 13300^2 .

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 7 ways as a sum of consecutive naturals, for example, 75604 + ... + 88300.

Almost surely, 2^1040544544 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 1040544544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108763964).

1040544544 is an abundant number, since it is smaller than the sum of its proper divisors (1176983384).

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

1040544544 is a wasteful number, since it uses less digits than its factorization.

1040544544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12917 (or 12909 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

The square root of 1040544544 is about 32257.4726846354. The cubic root of 1040544544 is about 1013.3362030544.

Adding to 1040544544 its reverse (4454450401), we get a palindrome (5494994945).

The spelling of 1040544544 in words is "one billion, forty million, five hundred forty-four thousand, five hundred forty-four".