540660 has 24 divisors (see below), whose sum is σ = 1514016. Its totient is φ = 144160.

The previous prime is 540629. The next prime is 540677. The reversal of 540660 is 66045.

540660 = T₁₅₅ + T₁₅₆ + ... + T₁₉₀.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

540660 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4446 + ... + 4565.

It is an arithmetic number, because the mean of its divisors is an integer number (63084).

2⁵⁴⁰⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

540660 is an abundant number, since it is smaller than the sum of its proper divisors (973356).

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

540660 is a wasteful number, since it uses less digits than its factorization.

540660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9023 (or 9021 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 540660 is about 735.2958588215. The cubic root of 540660 is about 81.4656912061.

The spelling of 540660 in words is "five hundred forty thousand, six hundred sixty".