540018693 has 24 divisors (see below), whose sum is σ = 787378176. Its totient is φ = 356637600.

The previous prime is 540018683. The next prime is 540018701. The reversal of 540018693 is 396810045.

It is not a de Polignac number, because 540018693 - 2⁹ = 540018181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540018623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 544428 + ... + 545418.

It is an arithmetic number, because the mean of its divisors is an integer number (32807424).

Almost surely, 2^540018693 is an apocalyptic number.

It is an amenable number.

540018693 is a deficient number, since it is larger than the sum of its proper divisors (247359483).

540018693 is a wasteful number, since it uses less digits than its factorization.

540018693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1502 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 540018693 is about 23238.3022830843. The cubic root of 540018693 is about 814.3346812790.

The spelling of 540018693 in words is "five hundred forty million, eighteen thousand, six hundred ninety-three".