5541444440 has 128 divisors (see below), whose sum is σ = 15153868800. Its totient is φ = 1780316160.

The previous prime is 5541444437. The next prime is 5541444451. The reversal of 5541444440 is 444441455.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 5541444440.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1135205 + ... + 1140075.

It is an arithmetic number, because the mean of its divisors is an integer number (118389600).

Almost surely, 2^5541444440 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 5541444440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7576934400).

5541444440 is an abundant number, since it is smaller than the sum of its proper divisors (9612424360).

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

5541444440 is a wasteful number, since it uses less digits than its factorization.

5541444440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5145 (or 5141 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

The square root of 5541444440 is about 74440.8788233992. The cubic root of 5541444440 is about 1769.5968141209.

Adding to 5541444440 its reverse (444441455), we get a palindrome (5985885895).

The spelling of 5541444440 in words is "five billion, five hundred forty-one million, four hundred forty-four thousand, four hundred forty".