5404365440 has 64 divisors (see below), whose sum is σ = 12934161000. Its totient is φ = 2159345664.

The previous prime is 5404365409. The next prime is 5404365443. The reversal of 5404365440 is 445634045.

It can be written as a sum of positive squares in 4 ways, for example, as 4395159616 + 1009205824 = 66296^2 + 31768^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 5404365440.

It is not an unprimeable number, because it can be changed into a prime (5404365443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641576 + ... + 649944.

Almost surely, 2^5404365440 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 5404365440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6467080500).

5404365440 is an abundant number, since it is smaller than the sum of its proper divisors (7529795560).

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

5404365440 is a wasteful number, since it uses less digits than its factorization.

5404365440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9397 (or 9385 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

The square root of 5404365440 is about 73514.3893397748. The cubic root of 5404365440 is about 1754.8832794401.

Adding to 5404365440 its reverse (445634045), we get a palindrome (5849999485).

The spelling of 5404365440 in words is "five billion, four hundred four million, three hundred sixty-five thousand, four hundred forty".