540866520 has 48 divisors (see below), whose sum is σ = 1757817360. Its totient is φ = 144230976.

The previous prime is 540866503. The next prime is 540866527. The reversal of 540866520 is 25668045.

540866520 is a `hidden beast` number, since 54 + 0 + 86 + 6 + 520 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540866527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 750844 + ... + 751563.

It is an arithmetic number, because the mean of its divisors is an integer number (36621195).

Almost surely, 2^540866520 is an apocalyptic number.

It is an amenable number.

540866520 is an abundant number, since it is smaller than the sum of its proper divisors (1216950840).

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

540866520 is a wasteful number, since it uses less digits than its factorization.

540866520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502424 (or 1502417 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 540866520 is about 23256.5371454995. The cubic root of 540866520 is about 814.7606257494.

It can be divided in two parts, 54086 and 6520, that added together give a palindrome (60606).

The spelling of 540866520 in words is "five hundred forty million, eight hundred sixty-six thousand, five hundred twenty".