5544220440 has 64 divisors (see below), whose sum is σ = 18144725760. Its totient is φ = 1344053120.

The previous prime is 5544220427. The next prime is 5544220457. The reversal of 5544220440 is 440224455.

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 = 5544220398 and 5544220407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2098764 + ... + 2101403.

It is an arithmetic number, because the mean of its divisors is an integer number (283511340).

Almost surely, 2^5544220440 is an apocalyptic number.

It is an amenable number.

5544220440 is an abundant number, since it is smaller than the sum of its proper divisors (12600505320).

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

5544220440 is a wasteful number, since it uses less digits than its factorization.

5544220440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4200192 (or 4200188 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 5544220440 is about 74459.5221580155. The cubic root of 5544220440 is about 1769.8922593936.

Adding to 5544220440 its reverse (440224455), we get a palindrome (5984444895).

The spelling of 5544220440 in words is "five billion, five hundred forty-four million, two hundred twenty thousand, four hundred forty".