540590401 has 4 divisors (see below), whose sum is σ = 582174292. Its totient is φ = 499006512.

The previous prime is 540590383. The next prime is 540590417. The reversal of 540590401 is 104095045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 194630401 + 345960000 = 13951^2 + 18600^2 .

It is a cyclic number.

It is not a de Polignac number, because 540590401 - 2¹⁹ = 540066113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540590401.

It is not an unprimeable number, because it can be changed into a prime (540590441) 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, 20791926 + ... + 20791951.

It is an arithmetic number, because the mean of its divisors is an integer number (145543573).

Almost surely, 2^540590401 is an apocalyptic number.

It is an amenable number.

540590401 is a deficient number, since it is larger than the sum of its proper divisors (41583891).

540590401 is a wasteful number, since it uses less digits than its factorization.

540590401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41583890.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 540590401 is about 23250.6000137631. The cubic root of 540590401 is about 814.6219537140.

The spelling of 540590401 in words is "five hundred forty million, five hundred ninety thousand, four hundred one".