540503444 has 12 divisors (see below), whose sum is σ = 1018641204. Its totient is φ = 249463104.

The previous prime is 540503401. The next prime is 540503449. The reversal of 540503444 is 444305045.

It can be written as a sum of positive squares in 2 ways, for example, as 372490000 + 168013444 = 19300^2 + 12962^2 .

It is a super-2 number, since 2×540503444² = 584287945951722272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540503449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5197097 + ... + 5197200.

It is an arithmetic number, because the mean of its divisors is an integer number (84886767).

Almost surely, 2^540503444 is an apocalyptic number.

It is an amenable number.

540503444 is a deficient number, since it is larger than the sum of its proper divisors (478137760).

540503444 is a wasteful number, since it uses less digits than its factorization.

540503444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10394314 (or 10394312 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 540503444 is about 23248.7299438055. The cubic root of 540503444 is about 814.5782725341.

Adding to 540503444 its reverse (444305045), we get a palindrome (984808489).

The spelling of 540503444 in words is "five hundred forty million, five hundred three thousand, four hundred forty-four".