540561280 has 64 divisors (see below), whose sum is σ = 1476902880. Its totient is φ = 185333760.

The previous prime is 540561271. The next prime is 540561323. The reversal of 540561280 is 82165045.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55851 + ... + 64810.

Almost surely, 2^540561280 is an apocalyptic number.

It is an amenable number.

540561280 is an abundant number, since it is smaller than the sum of its proper divisors (936341600).

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

540561280 is a wasteful number, since it uses less digits than its factorization.

540561280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120687 (or 120675 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 540561280 is about 23249.9737634261. The cubic root of 540561280 is about 814.6073258603.

The spelling of 540561280 in words is "five hundred forty million, five hundred sixty-one thousand, two hundred eighty".