540330403 has 4 divisors (see below), whose sum is σ = 557760448. Its totient is φ = 522900360.

The previous prime is 540330367. The next prime is 540330463. The reversal of 540330403 is 304033045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304033045 = 5 ⋅60806609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540330403 is a prime.

It is a super-2 number, since 2×540330403² = 583913888812284818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540330463) 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, 8714976 + ... + 8715037.

It is an arithmetic number, because the mean of its divisors is an integer number (139440112).

Almost surely, 2^540330403 is an apocalyptic number.

540330403 is a deficient number, since it is larger than the sum of its proper divisors (17430045).

540330403 is a wasteful number, since it uses less digits than its factorization.

540330403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17430044.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 540330403 is about 23245.0081307794. The cubic root of 540330403 is about 814.4913347694.

Adding to 540330403 its reverse (304033045), we get a palindrome (844363448).

The spelling of 540330403 in words is "five hundred forty million, three hundred thirty thousand, four hundred three".