540781043 has 8 divisors (see below), whose sum is σ = 599614896. Its totient is φ = 483559200.

The previous prime is 540781039. The next prime is 540781051. The reversal of 540781043 is 340187045.

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

It is not a de Polignac number, because 540781043 - 2² = 540781039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540781343) 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, 402296 + ... + 403637.

It is an arithmetic number, because the mean of its divisors is an integer number (74951862).

Almost surely, 2^540781043 is an apocalyptic number.

540781043 is a deficient number, since it is larger than the sum of its proper divisors (58833853).

540781043 is a wasteful number, since it uses less digits than its factorization.

540781043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806005.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 540781043 is about 23254.6993745350. The cubic root of 540781043 is about 814.7177026741.

The spelling of 540781043 in words is "five hundred forty million, seven hundred eighty-one thousand, forty-three".