540305331 has 16 divisors (see below), whose sum is σ = 728432640. Its totient is φ = 356212800.

The previous prime is 540305323. The next prime is 540305333. The reversal of 540305331 is 133503045.

It is a happy number.

It is not a de Polignac number, because 540305331 - 2³ = 540305323 is a prime.

It is a super-2 number, since 2×540305331² = 583859701414039122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540305333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102990 + ... + 108108.

It is an arithmetic number, because the mean of its divisors is an integer number (45527040).

Almost surely, 2^540305331 is an apocalyptic number.

540305331 is a deficient number, since it is larger than the sum of its proper divisors (188127309).

540305331 is a wasteful number, since it uses less digits than its factorization.

540305331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 540305331 is about 23244.4688259379. The cubic root of 540305331 is about 814.4787367722.

Adding to 540305331 its reverse (133503045), we get a palindrome (673808376).

The spelling of 540305331 in words is "five hundred forty million, three hundred five thousand, three hundred thirty-one".