540393680 has 40 divisors (see below), whose sum is σ = 1260565152. Its totient is φ = 215443584.

The previous prime is 540393641. The next prime is 540393683. The reversal of 540393680 is 86393045.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540393683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13559 + ... + 35561.

Almost surely, 2^540393680 is an apocalyptic number.

It is an amenable number.

540393680 is an abundant number, since it is smaller than the sum of its proper divisors (720171472).

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

540393680 is a wasteful number, since it uses less digits than its factorization.

540393680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22323 (or 22317 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 540393680 is about 23246.3691788632. The cubic root of 540393680 is about 814.5231280056.

The spelling of 540393680 in words is "five hundred forty million, three hundred ninety-three thousand, six hundred eighty".