540332401 has 4 divisors (see below), whose sum is σ = 617522752. Its totient is φ = 463142052.

The previous prime is 540332383. The next prime is 540332417. The reversal of 540332401 is 104233045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 540332401 - 2¹¹ = 540330353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540332461) 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, 38595165 + ... + 38595178.

It is an arithmetic number, because the mean of its divisors is an integer number (154380688).

Almost surely, 2^540332401 is an apocalyptic number.

It is an amenable number.

540332401 is a deficient number, since it is larger than the sum of its proper divisors (77190351).

540332401 is an equidigital number, since it uses as much as digits as its factorization.

540332401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77190350.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 540332401 is about 23245.0511077089. The cubic root of 540332401 is about 814.4923386932.

Adding to 540332401 its reverse (104233045), we get a palindrome (644565446).

The spelling of 540332401 in words is "five hundred forty million, three hundred thirty-two thousand, four hundred one".