540426820 has 12 divisors (see below), whose sum is σ = 1134896364. Its totient is φ = 216170720.

The previous prime is 540426797. The next prime is 540426829. The reversal of 540426820 is 28624045.

It can be written as a sum of positive squares in 2 ways, for example, as 107453956 + 432972864 = 10366^2 + 20808^2 .

It is a super-2 number, since 2×540426820² = 584122295550624800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540426829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13510651 + ... + 13510690.

It is an arithmetic number, because the mean of its divisors is an integer number (94574697).

Almost surely, 2^540426820 is an apocalyptic number.

It is an amenable number.

540426820 is an abundant number, since it is smaller than the sum of its proper divisors (594469544).

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

540426820 is a wasteful number, since it uses less digits than its factorization.

540426820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27021350 (or 27021348 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 540426820 is about 23247.0819674212. The cubic root of 540426820 is about 814.5397780552.

The spelling of 540426820 in words is "five hundred forty million, four hundred twenty-six thousand, eight hundred twenty".