540505420 has 48 divisors (see below), whose sum is σ = 1397003328. Its totient is φ = 171060480.

The previous prime is 540505417. The next prime is 540505421. The reversal of 540505420 is 24505045.

It is a super-2 number, since 2×540505420² = 584292218098752800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540505421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146671 + ... + 150310.

It is an arithmetic number, because the mean of its divisors is an integer number (29104236).

Almost surely, 2^540505420 is an apocalyptic number.

It is an amenable number.

540505420 is an abundant number, since it is smaller than the sum of its proper divisors (856497908).

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

540505420 is a wasteful number, since it uses less digits than its factorization.

540505420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297010 (or 297008 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 540505420 is about 23248.7724407118. The cubic root of 540505420 is about 814.5792651918.

The spelling of 540505420 in words is "five hundred forty million, five hundred five thousand, four hundred twenty".