4540406447 has 2 divisors, whose sum is σ = 4540406448. Its totient is φ = 4540406446.

The previous prime is 4540406389. The next prime is 4540406531. The reversal of 4540406447 is 7446040454.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4540406447 - 2⁸ = 4540406191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4540406447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4540436447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2270203223 + 2270203224.

It is an arithmetic number, because the mean of its divisors is an integer number (2270203224).

Almost surely, 2^4540406447 is an apocalyptic number.

4540406447 is a deficient number, since it is larger than the sum of its proper divisors (1).

4540406447 is an equidigital number, since it uses as much as digits as its factorization.

4540406447 is an evil number, because the sum of its binary digits is even.

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

The square root of 4540406447 is about 67382.5381460212. The cubic root of 4540406447 is about 1655.8903576220.

The spelling of 4540406447 in words is "four billion, five hundred forty million, four hundred six thousand, four hundred forty-seven".