540604557 has 48 divisors (see below), whose sum is σ = 843029440. Its totient is φ = 342195840.

The previous prime is 540604513. The next prime is 540604591. The reversal of 540604557 is 755406045.

It is a happy number.

540604557 is a `hidden beast` number, since 5 + 40 + 60 + 4 + 557 = 666.

It is not a de Polignac number, because 540604557 - 2¹⁴ = 540588173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540104557) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1951503 + ... + 1951779.

Almost surely, 2^540604557 is an apocalyptic number.

It is an amenable number.

540604557 is a deficient number, since it is larger than the sum of its proper divisors (302424883).

540604557 is a wasteful number, since it uses less digits than its factorization.

540604557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 540604557 is about 23250.9044340215. The cubic root of 540604557 is about 814.6290642656.

The spelling of 540604557 in words is "five hundred forty million, six hundred four thousand, five hundred fifty-seven".