540458 has 4 divisors (see below), whose sum is σ = 810690. Its totient is φ = 270228.

The previous prime is 540437. The next prime is 540461. The reversal of 540458 is 854045.

540458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 854045 = 5 ⋅170809.

It can be written as a sum of positive squares in only one way, i.e., 405769 + 134689 = 637^2 + 367^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540458.

It is an unprimeable number.

540458 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 as a sum of consecutive naturals, namely, 135113 + ... + 135116.

2⁵⁴⁰⁴⁵⁸ is an apocalyptic number.

540458 is a deficient number, since it is larger than the sum of its proper divisors (270232).

540458 is a wasteful number, since it uses less digits than its factorization.

540458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270231.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 540458 is about 735.1584863143. The cubic root of 540458 is about 81.4555442749.

The spelling of 540458 in words is "five hundred forty thousand, four hundred fifty-eight".