540452405 has 16 divisors (see below), whose sum is σ = 655209984. Its totient is φ = 427939200.

The previous prime is 540452401. The next prime is 540452443. The reversal of 540452405 is 504254045.

It is not a de Polignac number, because 540452405 - 2² = 540452401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540452401) 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 15 ways as a sum of consecutive naturals, for example, 235172 + ... + 237458.

It is an arithmetic number, because the mean of its divisors is an integer number (40950624).

Almost surely, 2^540452405 is an apocalyptic number.

It is an amenable number.

540452405 is a deficient number, since it is larger than the sum of its proper divisors (114757579).

540452405 is a wasteful number, since it uses less digits than its factorization.

540452405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 540452405 is about 23247.6322450266. The cubic root of 540452405 is about 814.5526318901.

The spelling of 540452405 in words is "five hundred forty million, four hundred fifty-two thousand, four hundred five".