540732449 has 2 divisors, whose sum is σ = 540732450. Its totient is φ = 540732448.

The previous prime is 540732427. The next prime is 540732503. The reversal of 540732449 is 944237045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348494224 + 192238225 = 18668^2 + 13865^2 .

It is a cyclic number.

It is not a de Polignac number, because 540732449 - 2²⁴ = 523955233 is a prime.

It is not a weakly prime, because it can be changed into another prime (540732749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270366224 + 270366225.

It is an arithmetic number, because the mean of its divisors is an integer number (270366225).

Almost surely, 2^540732449 is an apocalyptic number.

It is an amenable number.

540732449 is a deficient number, since it is larger than the sum of its proper divisors (1).

540732449 is an equidigital number, since it uses as much as digits as its factorization.

540732449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 540732449 is about 23253.6545299873. The cubic root of 540732449 is about 814.6932987257.

The spelling of 540732449 in words is "five hundred forty million, seven hundred thirty-two thousand, four hundred forty-nine".