5540438442 has 32 divisors (see below), whose sum is σ = 13815120384. Its totient is φ = 1439074800.

The previous prime is 5540438359. The next prime is 5540438459. The reversal of 5540438442 is 2448340455.

It is a self number, because there is not a number n which added to its sum of digits gives 5540438442.

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, 5995684 + ... + 5996607.

It is an arithmetic number, because the mean of its divisors is an integer number (431722512).

Almost surely, 2^5540438442 is an apocalyptic number.

5540438442 is an abundant number, since it is smaller than the sum of its proper divisors (8274681942).

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

5540438442 is a wasteful number, since it uses less digits than its factorization.

5540438442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11992314.

The product of its (nonzero) digits is 307200, while the sum is 39.

The square root of 5540438442 is about 74434.1214900801. The cubic root of 5540438442 is about 1769.4897229937.

Adding to 5540438442 its reverse (2448340455), we get a palindrome (7988778897).

The spelling of 5540438442 in words is "five billion, five hundred forty million, four hundred thirty-eight thousand, four hundred forty-two".