540920 has 16 divisors (see below), whose sum is σ = 1217160. Its totient is φ = 216352.

The previous prime is 540907. The next prime is 540961. The reversal of 540920 is 29045.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 540892 and 540901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6722 + ... + 6801.

2⁵⁴⁰⁹²⁰ is an apocalyptic number.

It is an amenable number.

540920 is an abundant number, since it is smaller than the sum of its proper divisors (676240).

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

540920 is a wasteful number, since it uses less digits than its factorization.

540920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13534 (or 13530 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 540920 is about 735.4726371525. The cubic root of 540920 is about 81.4787478932.

Adding to 540920 its reverse (29045), we get a palindrome (569965).

The spelling of 540920 in words is "five hundred forty thousand, nine hundred twenty".