540418 has 4 divisors (see below), whose sum is σ = 810630. Its totient is φ = 270208.

The previous prime is 540391. The next prime is 540433. The reversal of 540418 is 814045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 522729 + 17689 = 723^2 + 133^2 .

It is a super-2 number, since 2×540418² = 584103229448, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135103 + ... + 135106.

2⁵⁴⁰⁴¹⁸ is an apocalyptic number.

540418 is a deficient number, since it is larger than the sum of its proper divisors (270212).

540418 is a wasteful number, since it uses less digits than its factorization.

540418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270211.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 540418 is about 735.1312807928. The cubic root of 540418 is about 81.4535346817.

The spelling of 540418 in words is "five hundred forty thousand, four hundred eighteen".