540144444 has 36 divisors (see below), whose sum is σ = 1466107944. Its totient is φ = 154326816.

The previous prime is 540144439. The next prime is 540144467. The reversal of 540144444 is 444441045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458719 + ... + 459894.

Almost surely, 2^540144444 is an apocalyptic number.

It is an amenable number.

540144444 is an abundant number, since it is smaller than the sum of its proper divisors (925963500).

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

540144444 is a wasteful number, since it uses less digits than its factorization.

540144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918634 (or 918625 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

The square root of 540144444 is about 23241.0078094733. The cubic root of 540144444 is about 814.3978861607.

Adding to 540144444 its reverse (444441045), we get a palindrome (984585489).

The spelling of 540144444 in words is "five hundred forty million, one hundred forty-four thousand, four hundred forty-four".