540028181 has 16 divisors (see below), whose sum is σ = 684325248. Its totient is φ = 413899200.

The previous prime is 540028163. The next prime is 540028193. The reversal of 540028181 is 181820045.

It is not a de Polignac number, because 540028181 - 2⁶ = 540028117 is a prime.

It is a super-2 number, since 2×540028181² = 583260872548337522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540028141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52790 + ... + 62183.

It is an arithmetic number, because the mean of its divisors is an integer number (42770328).

Almost surely, 2^540028181 is an apocalyptic number.

It is an amenable number.

540028181 is a deficient number, since it is larger than the sum of its proper divisors (144297067).

540028181 is a wasteful number, since it uses less digits than its factorization.

540028181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115052.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 540028181 is about 23238.5064279097. The cubic root of 540028181 is about 814.3394504733.

The spelling of 540028181 in words is "five hundred forty million, twenty-eight thousand, one hundred eighty-one".