445434331 has 2 divisors, whose sum is σ = 445434332. Its totient is φ = 445434330.

The previous prime is 445434263. The next prime is 445434349. The reversal of 445434331 is 133434544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445434331 - 2⁹ = 445433819 is a prime.

It is a super-2 number, since 2×445434331² = 396823486466835122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445434293 and 445434302.

It is not a weakly prime, because it can be changed into another prime (445432331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222717165 + 222717166.

It is an arithmetic number, because the mean of its divisors is an integer number (222717166).

Almost surely, 2^445434331 is an apocalyptic number.

445434331 is a deficient number, since it is larger than the sum of its proper divisors (1).

445434331 is an equidigital number, since it uses as much as digits as its factorization.

445434331 is an evil number, because the sum of its binary digits is even.

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

The square root of 445434331 is about 21105.3152310028. The cubic root of 445434331 is about 763.7089768789.

Adding to 445434331 its reverse (133434544), we get a palindrome (578868875).

The spelling of 445434331 in words is "four hundred forty-five million, four hundred thirty-four thousand, three hundred thirty-one".