445434349 has 2 divisors, whose sum is σ = 445434350. Its totient is φ = 445434348.

The previous prime is 445434331. The next prime is 445434401. The reversal of 445434349 is 943434544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378030249 + 67404100 = 19443^2 + 8210^2 .

It is a cyclic number.

It is not a de Polignac number, because 445434349 - 2²¹ = 443337197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445414349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222717174 + 222717175.

It is an arithmetic number, because the mean of its divisors is an integer number (222717175).

Almost surely, 2^445434349 is an apocalyptic number.

It is an amenable number.

445434349 is a deficient number, since it is larger than the sum of its proper divisors (1).

445434349 is an equidigital number, since it uses as much as digits as its factorization.

445434349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 40.

The square root of 445434349 is about 21105.3156574357. The cubic root of 445434349 is about 763.7089871661.

The spelling of 445434349 in words is "four hundred forty-five million, four hundred thirty-four thousand, three hundred forty-nine".