445340263 has 2 divisors, whose sum is σ = 445340264. Its totient is φ = 445340262.

The previous prime is 445340257. The next prime is 445340299. The reversal of 445340263 is 362043544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445340263 - 2⁹ = 445339751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445340213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222670131 + 222670132.

It is an arithmetic number, because the mean of its divisors is an integer number (222670132).

Almost surely, 2^445340263 is an apocalyptic number.

445340263 is a deficient number, since it is larger than the sum of its proper divisors (1).

445340263 is an equidigital number, since it uses as much as digits as its factorization.

445340263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 445340263 is about 21103.0865751908. The cubic root of 445340263 is about 763.6552124002.

The spelling of 445340263 in words is "four hundred forty-five million, three hundred forty thousand, two hundred sixty-three".