540043343 has 16 divisors (see below), whose sum is σ = 647915520. Its totient is φ = 440359200.

The previous prime is 540043333. The next prime is 540043363. The reversal of 540043343 is 343340045.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 540043343 - 2⁸ = 540043087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540043303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8288 + ... + 33893.

It is an arithmetic number, because the mean of its divisors is an integer number (40494720).

Almost surely, 2^540043343 is an apocalyptic number.

540043343 is a deficient number, since it is larger than the sum of its proper divisors (107872177).

540043343 is a wasteful number, since it uses less digits than its factorization.

540043343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42278.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 540043343 is about 23238.8326514048. The cubic root of 540043343 is about 814.3470716183.

Adding to 540043343 its reverse (343340045), we get a palindrome (883383388).

The spelling of 540043343 in words is "five hundred forty million, forty-three thousand, three hundred forty-three".