445434665 has 16 divisors (see below), whose sum is σ = 578834256. Its totient is φ = 327110400.

The previous prime is 445434653. The next prime is 445434667. The reversal of 445434665 is 566434544.

It can be written as a sum of positive squares in 8 ways, for example, as 36626704 + 408807961 = 6052^2 + 20219^2 .

It is not a de Polignac number, because 445434665 - 2¹⁰ = 445433641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445434667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7166 + ... + 30695.

It is an arithmetic number, because the mean of its divisors is an integer number (36177141).

Almost surely, 2^445434665 is an apocalyptic number.

It is an amenable number.

445434665 is a deficient number, since it is larger than the sum of its proper divisors (133399591).

445434665 is a wasteful number, since it uses less digits than its factorization.

445434665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38060.

The product of its digits is 691200, while the sum is 41.

The square root of 445434665 is about 21105.3231437000. The cubic root of 445434665 is about 763.7091677628.

The spelling of 445434665 in words is "four hundred forty-five million, four hundred thirty-four thousand, six hundred sixty-five".