540830 has 8 divisors (see below), whose sum is σ = 973512. Its totient is φ = 216328.

The previous prime is 540823. The next prime is 540851. The reversal of 540830 is 38045.

540830 = T₂₆₁ + T₂₆₂ + ... + T₂₇₅.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540830.

It is an unprimeable number.

540830 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 27032 + ... + 27051.

It is an arithmetic number, because the mean of its divisors is an integer number (121689).

2⁵⁴⁰⁸³⁰ is an apocalyptic number.

540830 is a deficient number, since it is larger than the sum of its proper divisors (432682).

540830 is a wasteful number, since it uses less digits than its factorization.

540830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54090.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 540830 is about 735.4114494621. The cubic root of 540830 is about 81.4742287443.

Adding to 540830 its reverse (38045), we get a palindrome (578875).

The spelling of 540830 in words is "five hundred forty thousand, eight hundred thirty".