540724905 has 48 divisors (see below), whose sum is σ = 1073404800. Its totient is φ = 246668544.

The previous prime is 540724903. The next prime is 540724913. The reversal of 540724905 is 509427045.

540724905 is a `hidden beast` number, since 5 + 407 + 249 + 0 + 5 = 666.

It is not a de Polignac number, because 540724905 - 2¹ = 540724903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 540724905.

It is not an unprimeable number, because it can be changed into a prime (540724903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175821 + ... + 178869.

It is an arithmetic number, because the mean of its divisors is an integer number (22362600).

Almost surely, 2^540724905 is an apocalyptic number.

It is an amenable number.

540724905 is a deficient number, since it is larger than the sum of its proper divisors (532679895).

540724905 is a wasteful number, since it uses less digits than its factorization.

540724905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 540724905 is about 23253.4923183594. The cubic root of 540724905 is about 814.6895099914.

The spelling of 540724905 in words is "five hundred forty million, seven hundred twenty-four thousand, nine hundred five".