538544144 has 20 divisors (see below), whose sum is σ = 1051398480. Its totient is φ = 267215520.

The previous prime is 538544129. The next prime is 538544177. The reversal of 538544144 is 441445835.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 538544098 and 538544107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126374 + ... + 130565.

It is an arithmetic number, because the mean of its divisors is an integer number (52569924).

Almost surely, 2^538544144 is an apocalyptic number.

It is an amenable number.

538544144 is a deficient number, since it is larger than the sum of its proper divisors (512854336).

538544144 is a wasteful number, since it uses less digits than its factorization.

538544144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257078 (or 257072 counting only the distinct ones).

The product of its digits is 153600, while the sum is 38.

The square root of 538544144 is about 23206.5539018614. The cubic root of 538544144 is about 813.5928112945.

Adding to 538544144 its reverse (441445835), we get a palindrome (979989979).

The spelling of 538544144 in words is "five hundred thirty-eight million, five hundred forty-four thousand, one hundred forty-four".