540128326 has 4 divisors (see below), whose sum is σ = 810192492. Its totient is φ = 270064162.

The previous prime is 540128299. The next prime is 540128357. The reversal of 540128326 is 623821045.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135032080 + ... + 135032083.

It is an arithmetic number, because the mean of its divisors is an integer number (202548123).

Almost surely, 2^540128326 is an apocalyptic number.

540128326 is a deficient number, since it is larger than the sum of its proper divisors (270064166).

540128326 is a wasteful number, since it uses less digits than its factorization.

540128326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270064165.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 540128326 is about 23240.6610491182. The cubic root of 540128326 is about 814.3897854907.

The spelling of 540128326 in words is "five hundred forty million, one hundred twenty-eight thousand, three hundred twenty-six".