445642343 has 2 divisors, whose sum is σ = 445642344. Its totient is φ = 445642342.

The previous prime is 445642289. The next prime is 445642349. The reversal of 445642343 is 343246544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445642343 - 2⁶ = 445642279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445642349) 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, 222821171 + 222821172.

It is an arithmetic number, because the mean of its divisors is an integer number (222821172).

Almost surely, 2^445642343 is an apocalyptic number.

445642343 is a deficient number, since it is larger than the sum of its proper divisors (1).

445642343 is an equidigital number, since it uses as much as digits as its factorization.

445642343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 35.

The square root of 445642343 is about 21110.2426087433. The cubic root of 445642343 is about 763.8278390758.

Adding to 445642343 its reverse (343246544), we get a palindrome (788888887).

The spelling of 445642343 in words is "four hundred forty-five million, six hundred forty-two thousand, three hundred forty-three".