445540343 has 2 divisors, whose sum is σ = 445540344. Its totient is φ = 445540342.

The previous prime is 445540331. The next prime is 445540349. The reversal of 445540343 is 343045544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445540343 - 2⁴ = 445540327 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445540349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222770171 + 222770172.

It is an arithmetic number, because the mean of its divisors is an integer number (222770172).

Almost surely, 2^445540343 is an apocalyptic number.

445540343 is a deficient number, since it is larger than the sum of its proper divisors (1).

445540343 is an equidigital number, since it uses as much as digits as its factorization.

445540343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 32.

The square root of 445540343 is about 21107.8265816261. The cubic root of 445540343 is about 763.7695588685.

Adding to 445540343 its reverse (343045544), we get a palindrome (788585887).

The spelling of 445540343 in words is "four hundred forty-five million, five hundred forty thousand, three hundred forty-three".