540388747 has 4 divisors (see below), whose sum is σ = 568830280. Its totient is φ = 511947216.

The previous prime is 540388727. The next prime is 540388769. The reversal of 540388747 is 747883045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540388747 - 2⁷ = 540388619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540388697 and 540388706.

It is not an unprimeable number, because it can be changed into a prime (540388727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14220738 + ... + 14220775.

It is an arithmetic number, because the mean of its divisors is an integer number (142207570).

Almost surely, 2^540388747 is an apocalyptic number.

540388747 is a deficient number, since it is larger than the sum of its proper divisors (28441533).

540388747 is a wasteful number, since it uses less digits than its factorization.

540388747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28441532.

The product of its (nonzero) digits is 752640, while the sum is 46.

The square root of 540388747 is about 23246.2630760301. The cubic root of 540388747 is about 814.5206495318.

The spelling of 540388747 in words is "five hundred forty million, three hundred eighty-eight thousand, seven hundred forty-seven".