540402130 has 8 divisors (see below), whose sum is σ = 972723852. Its totient is φ = 216160848.

The previous prime is 540402097. The next prime is 540402133. The reversal of 540402130 is 31204045.

It can be written as a sum of positive squares in 2 ways, for example, as 502073649 + 38328481 = 22407^2 + 6191^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 540402098 and 540402107.

It is not an unprimeable number, because it can be changed into a prime (540402133) 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 3 ways as a sum of consecutive naturals, for example, 27020097 + ... + 27020116.

Almost surely, 2^540402130 is an apocalyptic number.

540402130 is a deficient number, since it is larger than the sum of its proper divisors (432321722).

540402130 is a wasteful number, since it uses less digits than its factorization.

540402130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54040220.

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

The square root of 540402130 is about 23246.5509269655. The cubic root of 540402130 is about 814.5273734812.

Adding to 540402130 its reverse (31204045), we get a palindrome (571606175).

The spelling of 540402130 in words is "five hundred forty million, four hundred two thousand, one hundred thirty".