540004220 has 48 divisors (see below), whose sum is σ = 1297598400. Its totient is φ = 184917504.

The previous prime is 540004219. The next prime is 540004243. The reversal of 540004220 is 22400045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145022 + ... + 148698.

It is an arithmetic number, because the mean of its divisors is an integer number (27033300).

Almost surely, 2^540004220 is an apocalyptic number.

It is an amenable number.

540004220 is an abundant number, since it is smaller than the sum of its proper divisors (757594180).

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

540004220 is a wasteful number, since it uses less digits than its factorization.

540004220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742 (or 4740 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 540004220 is about 23237.9908770100. The cubic root of 540004220 is about 814.3274062400.

Adding to 540004220 its reverse (22400045), we get a palindrome (562404265).

The spelling of 540004220 in words is "five hundred forty million, four thousand, two hundred twenty".