540207439 has 2 divisors, whose sum is σ = 540207440. Its totient is φ = 540207438.

The previous prime is 540207433. The next prime is 540207517. The reversal of 540207439 is 934702045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540207439 - 2⁵ = 540207407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540207433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270103719 + 270103720.

It is an arithmetic number, because the mean of its divisors is an integer number (270103720).

Almost surely, 2^540207439 is an apocalyptic number.

540207439 is a deficient number, since it is larger than the sum of its proper divisors (1).

540207439 is an equidigital number, since it uses as much as digits as its factorization.

540207439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 540207439 is about 23242.3630253036. The cubic root of 540207439 is about 814.4295449766.

The spelling of 540207439 in words is "five hundred forty million, two hundred seven thousand, four hundred thirty-nine".