540446447 has 4 divisors (see below), whose sum is σ = 540494856. Its totient is φ = 540398040.

The previous prime is 540446437. The next prime is 540446453. The reversal of 540446447 is 744644045.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 540446447 - 2⁸ = 540446191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540446447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540446437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1997 + ... + 32937.

It is an arithmetic number, because the mean of its divisors is an integer number (135123714).

Almost surely, 2^540446447 is an apocalyptic number.

540446447 is a deficient number, since it is larger than the sum of its proper divisors (48409).

540446447 is a wasteful number, since it uses less digits than its factorization.

540446447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48408.

The product of its (nonzero) digits is 215040, while the sum is 38.

The square root of 540446447 is about 23247.5041025913. The cubic root of 540446447 is about 814.5496386432.

The spelling of 540446447 in words is "five hundred forty million, four hundred forty-six thousand, four hundred forty-seven".