540780 has 24 divisors (see below), whose sum is σ = 1514352. Its totient is φ = 144192.

The previous prime is 540779. The next prime is 540781. The reversal of 540780 is 87045.

It is an interprime number because it is at equal distance from previous prime (540779) and next prime (540781).

It is a self number, because there is not a number n which added to its sum of digits gives 540780.

It is not an unprimeable number, because it can be changed into a prime (540781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4447 + ... + 4566.

It is an arithmetic number, because the mean of its divisors is an integer number (63098).

2⁵⁴⁰⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

540780 is an abundant number, since it is smaller than the sum of its proper divisors (973572).

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

540780 is a wasteful number, since it uses less digits than its factorization.

540780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9025 (or 9023 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 540780 is about 735.3774541010. The cubic root of 540780 is about 81.4717178894.

The spelling of 540780 in words is "five hundred forty thousand, seven hundred eighty".