540660421 has 8 divisors (see below), whose sum is σ = 619375680. Its totient is φ = 462314688.

The previous prime is 540660413. The next prime is 540660433. The reversal of 540660421 is 124066045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540660421 - 2³ = 540660413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 540660421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540660521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89236 + ... + 95101.

It is an arithmetic number, because the mean of its divisors is an integer number (77421960).

Almost surely, 2^540660421 is an apocalyptic number.

It is an amenable number.

540660421 is a deficient number, since it is larger than the sum of its proper divisors (78715259).

540660421 is a wasteful number, since it uses less digits than its factorization.

540660421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184763.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 540660421 is about 23252.1057325998. The cubic root of 540660421 is about 814.6571235127.

The spelling of 540660421 in words is "five hundred forty million, six hundred sixty thousand, four hundred twenty-one".