540345406 has 8 divisors (see below), whose sum is σ = 811189944. Its totient is φ = 269948760.

The previous prime is 540345397. The next prime is 540345409. The reversal of 540345406 is 604543045.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540345409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108940 + ... + 113791.

It is an arithmetic number, because the mean of its divisors is an integer number (101398743).

Almost surely, 2^540345406 is an apocalyptic number.

540345406 is a deficient number, since it is larger than the sum of its proper divisors (270844538).

540345406 is a wasteful number, since it uses less digits than its factorization.

540345406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223946.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 540345406 is about 23245.3308429887. The cubic root of 540345406 is about 814.4988731819.

The spelling of 540345406 in words is "five hundred forty million, three hundred forty-five thousand, four hundred six".