540302221 has 8 divisors (see below), whose sum is σ = 569242080. Its totient is φ = 511412688.

The previous prime is 540302207. The next prime is 540302263. The reversal of 540302221 is 122203045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540302221 - 2¹⁵ = 540269453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540302201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10575 + ... + 34531.

It is an arithmetic number, because the mean of its divisors is an integer number (71155260).

Almost surely, 2^540302221 is an apocalyptic number.

It is an amenable number.

540302221 is a deficient number, since it is larger than the sum of its proper divisors (28939859).

540302221 is a wasteful number, since it uses less digits than its factorization.

540302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25163.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 540302221 is about 23244.4019282063. The cubic root of 540302221 is about 814.4771740548.

Adding to 540302221 its reverse (122203045), we get a palindrome (662505266).

The spelling of 540302221 in words is "five hundred forty million, three hundred two thousand, two hundred twenty-one".