540438020 has 12 divisors (see below), whose sum is σ = 1134919884. Its totient is φ = 216175200.

The previous prime is 540437999. The next prime is 540438029. The reversal of 540438020 is 20834045.

It can be written as a sum of positive squares in 2 ways, for example, as 200109316 + 340328704 = 14146^2 + 18448^2 .

It is not an unprimeable number, because it can be changed into a prime (540438029) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 13510931 + ... + 13510970.

It is an arithmetic number, because the mean of its divisors is an integer number (94576657).

Almost surely, 2^540438020 is an apocalyptic number.

It is an amenable number.

540438020 is an abundant number, since it is smaller than the sum of its proper divisors (594481864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540438020 is a wasteful number, since it uses less digits than its factorization.

540438020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27021910 (or 27021908 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 540438020 is about 23247.3228566216. The cubic root of 540438020 is about 814.5454049549.

The spelling of 540438020 in words is "five hundred forty million, four hundred thirty-eight thousand, twenty".