540813820 has 12 divisors (see below), whose sum is σ = 1135709064. Its totient is φ = 216325520.

The previous prime is 540813811. The next prime is 540813829. The reversal of 540813820 is 28318045.

It is an interprime number because it is at equal distance from previous prime (540813811) and next prime (540813829).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540813829) 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, 13520326 + ... + 13520365.

It is an arithmetic number, because the mean of its divisors is an integer number (94642422).

Almost surely, 2^540813820 is an apocalyptic number.

It is an amenable number.

540813820 is an abundant number, since it is smaller than the sum of its proper divisors (594895244).

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

540813820 is a wasteful number, since it uses less digits than its factorization.

540813820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27040700 (or 27040698 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 540813820 is about 23255.4041031327. The cubic root of 540813820 is about 814.7341624859.

The spelling of 540813820 in words is "five hundred forty million, eight hundred thirteen thousand, eight hundred twenty".