540343403 has 2 divisors, whose sum is σ = 540343404. Its totient is φ = 540343402.

The previous prime is 540343381. The next prime is 540343493. The reversal of 540343403 is 304343045.

It is a happy number.

540343403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540343403 - 2¹⁰ = 540342379 is a prime.

It is not a weakly prime, because it can be changed into another prime (540343493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270171701 + 270171702.

It is an arithmetic number, because the mean of its divisors is an integer number (270171702).

Almost surely, 2^540343403 is an apocalyptic number.

540343403 is a deficient number, since it is larger than the sum of its proper divisors (1).

540343403 is an equidigital number, since it uses as much as digits as its factorization.

540343403 is an odious number, because the sum of its binary digits is odd.

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

The square root of 540343403 is about 23245.2877590276. The cubic root of 540343403 is about 814.4978667619.

Adding to 540343403 its reverse (304343045), we get a palindrome (844686448).

The spelling of 540343403 in words is "five hundred forty million, three hundred forty-three thousand, four hundred three".