5540438443 has 8 divisors (see below), whose sum is σ = 5678327808. Its totient is φ = 5403382824.

The previous prime is 5540438359. The next prime is 5540438459. The reversal of 5540438443 is 3448340455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-5540438443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5540438396 and 5540438405.

It is not an unprimeable number, because it can be changed into a prime (5540438543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194971 + ... + 221572.

It is an arithmetic number, because the mean of its divisors is an integer number (709790976).

Almost surely, 2^5540438443 is an apocalyptic number.

5540438443 is a deficient number, since it is larger than the sum of its proper divisors (137889365).

5540438443 is a wasteful number, since it uses less digits than its factorization.

5540438443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416873.

The product of its (nonzero) digits is 460800, while the sum is 40.

The square root of 5540438443 is about 74434.1214967974. The cubic root of 5540438443 is about 1769.4897231002.

Adding to 5540438443 its reverse (3448340455), we get a palindrome (8988778898).

The spelling of 5540438443 in words is "five billion, five hundred forty million, four hundred thirty-eight thousand, four hundred forty-three".