5540144420 has 24 divisors (see below), whose sum is σ = 11635726200. Its totient is φ = 2215786752.

The previous prime is 5540144377. The next prime is 5540144461. The reversal of 5540144420 is 244410455.

It can be written as a sum of positive squares in 4 ways, for example, as 930006016 + 4610138404 = 30496^2 + 67898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265736 + ... + 285824.

It is an arithmetic number, because the mean of its divisors is an integer number (484821925).

Almost surely, 2^5540144420 is an apocalyptic number.

It is an amenable number.

5540144420 is an abundant number, since it is smaller than the sum of its proper divisors (6095581780).

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

5540144420 is a wasteful number, since it uses less digits than its factorization.

5540144420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33887 (or 33885 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 5540144420 is about 74432.1464153762. The cubic root of 5540144420 is about 1769.4584211322.

Adding to 5540144420 its reverse (244410455), we get a palindrome (5784554875).

The spelling of 5540144420 in words is "five billion, five hundred forty million, one hundred forty-four thousand, four hundred twenty".