5540043 has 16 divisors (see below), whose sum is σ = 7682976. Its totient is φ = 3548160.

The previous prime is 5540027. The next prime is 5540057. The reversal of 5540043 is 3400455.

It is a happy number.

It is not a de Polignac number, because 5540043 - 2⁴ = 5540027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5540023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8671 + ... + 9287.

It is an arithmetic number, because the mean of its divisors is an integer number (480186).

Almost surely, 2^5540043 is an apocalyptic number.

5540043 is a deficient number, since it is larger than the sum of its proper divisors (2142933).

5540043 is a wasteful number, since it uses less digits than its factorization.

5540043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 5540043 is about 2353.7295936449. The cubic root of 5540043 is about 176.9447623606.

Adding to 5540043 its reverse (3400455), we get a palindrome (8940498).

The spelling of 5540043 in words is "five million, five hundred forty thousand, forty-three".