540224401 has 4 divisors (see below), whose sum is σ = 540270900. Its totient is φ = 540177904.

The previous prime is 540224387. The next prime is 540224407. The reversal of 540224401 is 104422045.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 33074001 + 507150400 = 5751^2 + 22520^2 .

It is a cyclic number.

It is not a de Polignac number, because 540224401 - 2⁵ = 540224369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540224407) 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, 10815 + ... + 34603.

It is an arithmetic number, because the mean of its divisors is an integer number (135067725).

Almost surely, 2^540224401 is an apocalyptic number.

It is an amenable number.

540224401 is a deficient number, since it is larger than the sum of its proper divisors (46499).

540224401 is a wasteful number, since it uses less digits than its factorization.

540224401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46498.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 540224401 is about 23242.7279164904. The cubic root of 540224401 is about 814.4380689919.

Adding to 540224401 its reverse (104422045), we get a palindrome (644646446).

The spelling of 540224401 in words is "five hundred forty million, two hundred twenty-four thousand, four hundred one".