540404218 has 8 divisors (see below), whose sum is σ = 825900948. Its totient is φ = 265103904.

The previous prime is 540404141. The next prime is 540404243. The reversal of 540404218 is 812404045.

It can be written as a sum of positive squares in 2 ways, for example, as 491641929 + 48762289 = 22173^2 + 6983^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2548971 + ... + 2549182.

Almost surely, 2^540404218 is an apocalyptic number.

540404218 is a deficient number, since it is larger than the sum of its proper divisors (285496730).

540404218 is a wasteful number, since it uses less digits than its factorization.

540404218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098208.

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 540404218 is about 23246.5958368102. The cubic root of 540404218 is about 814.5284225339.

The spelling of 540404218 in words is "five hundred forty million, four hundred four thousand, two hundred eighteen".