540404513 has 24 divisors (see below), whose sum is σ = 607756800. Its totient is φ = 480031200.

The previous prime is 540404509. The next prime is 540404539. The reversal of 540404513 is 315404045.

It is not a de Polignac number, because 540404513 - 2² = 540404509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540404413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1548263 + ... + 1548611.

It is an arithmetic number, because the mean of its divisors is an integer number (25323200).

Almost surely, 2^540404513 is an apocalyptic number.

It is an amenable number.

540404513 is a deficient number, since it is larger than the sum of its proper divisors (67352287).

540404513 is a wasteful number, since it uses less digits than its factorization.

540404513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 540404513 is about 23246.6021818243. The cubic root of 540404513 is about 814.5285707476.

Adding to 540404513 its reverse (315404045), we get a palindrome (855808558).

The spelling of 540404513 in words is "five hundred forty million, four hundred four thousand, five hundred thirteen".