540806258 has 8 divisors (see below), whose sum is σ = 812013228. Its totient is φ = 270135184.

The previous prime is 540806257. The next prime is 540806263. The reversal of 540806258 is 852608045.

It can be written as a sum of positive squares in 2 ways, for example, as 517699009 + 23107249 = 22753^2 + 4807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (540806251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131441 + ... + 135492.

Almost surely, 2^540806258 is an apocalyptic number.

540806258 is a deficient number, since it is larger than the sum of its proper divisors (271206970).

540806258 is a wasteful number, since it uses less digits than its factorization.

540806258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267948.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 540806258 is about 23255.2415166990. The cubic root of 540806258 is about 814.7303650926.

The spelling of 540806258 in words is "five hundred forty million, eight hundred six thousand, two hundred fifty-eight".