540488 has 16 divisors (see below), whose sum is σ = 1091580. Its totient is φ = 249408.

The previous prime is 540469. The next prime is 540509. The reversal of 540488 is 884045.

It can be written as a sum of positive squares in 2 ways, for example, as 515524 + 24964 = 718^2 + 158^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 540488.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540488.

It is an unprimeable number.

540488 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 3 ways as a sum of consecutive naturals, for example, 2495 + ... + 2702.

2⁵⁴⁰⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

540488 is an abundant number, since it is smaller than the sum of its proper divisors (551092).

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

540488 is a wasteful number, since it uses less digits than its factorization.

540488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216 (or 5212 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 540488 is about 735.1788897949. The cubic root of 540488 is about 81.4570514047.

The spelling of 540488 in words is "five hundred forty thousand, four hundred eighty-eight".