540449 has 8 divisors (see below), whose sum is σ = 665280. Its totient is φ = 427536.

The previous prime is 540437. The next prime is 540461. The reversal of 540449 is 944045.

It is an interprime number because it is at equal distance from previous prime (540437) and next prime (540461).

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

It is a cyclic number.

It is not a de Polignac number, because 540449 - 2⁴ = 540433 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (540469) 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, 2879 + ... + 3060.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2⁵⁴⁰⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

540449 is a deficient number, since it is larger than the sum of its proper divisors (124831).

540449 is a wasteful number, since it uses less digits than its factorization.

540449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5959.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 540449 is about 735.1523651598. The cubic root of 540449 is about 81.4550921251.

It can be divided in two parts, 540 and 449, that added together give a palindrome (989).

The spelling of 540449 in words is "five hundred forty thousand, four hundred forty-nine".