540204403 has 4 divisors (see below), whose sum is σ = 554804560. Its totient is φ = 525604248.

The previous prime is 540204383. The next prime is 540204407. The reversal of 540204403 is 304402045.

It is a happy number.

540204403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 540204403 - 2¹³ = 540196211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540204407) 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, 7300023 + ... + 7300096.

It is an arithmetic number, because the mean of its divisors is an integer number (138701140).

Almost surely, 2^540204403 is an apocalyptic number.

540204403 is a deficient number, since it is larger than the sum of its proper divisors (14600157).

540204403 is a wasteful number, since it uses less digits than its factorization.

540204403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14600156.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 540204403 is about 23242.2977134362. The cubic root of 540204403 is about 814.4280192586.

Adding to 540204403 its reverse (304402045), we get a palindrome (844606448).

The spelling of 540204403 in words is "five hundred forty million, two hundred four thousand, four hundred three".