540657242 has 32 divisors (see below), whose sum is σ = 848900304. Its totient is φ = 258048000.

The previous prime is 540657233. The next prime is 540657281. The reversal of 540657242 is 242756045.

It can be written as a sum of positive squares in 8 ways, for example, as 215179561 + 325477681 = 14669^2 + 18041^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 803018 + ... + 803690.

Almost surely, 2^540657242 is an apocalyptic number.

540657242 is a deficient number, since it is larger than the sum of its proper divisors (308243062).

540657242 is a wasteful number, since it uses less digits than its factorization.

540657242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 540657242 is about 23252.0373730992. The cubic root of 540657242 is about 814.6555268234.

The spelling of 540657242 in words is "five hundred forty million, six hundred fifty-seven thousand, two hundred forty-two".