5442544540 has 48 divisors (see below), whose sum is σ = 11683792512. Its totient is φ = 2128641536.

The previous prime is 5442544519. The next prime is 5442544559. The reversal of 5442544540 is 454452445.

It is a self number, because there is not a number n which added to its sum of digits gives 5442544540.

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, 1288512 + ... + 1292728.

It is an arithmetic number, because the mean of its divisors is an integer number (243412344).

Almost surely, 2^5442544540 is an apocalyptic number.

It is an amenable number.

5442544540 is an abundant number, since it is smaller than the sum of its proper divisors (6241247972).

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

5442544540 is a wasteful number, since it uses less digits than its factorization.

5442544540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5646 (or 5644 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 37.

The square root of 5442544540 is about 73773.6032737998. The cubic root of 5442544540 is about 1759.0060395755.

Adding to 5442544540 its reverse (454452445), we get a palindrome (5896996985).

The spelling of 5442544540 in words is "five billion, four hundred forty-two million, five hundred forty-four thousand, five hundred forty".