445170449 has 4 divisors (see below), whose sum is σ = 471356964. Its totient is φ = 418983936.

The previous prime is 445170419. The next prime is 445170457. The reversal of 445170449 is 944071544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 294740224 + 150430225 = 17168^2 + 12265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445170449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445170419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13093232 + ... + 13093265.

It is an arithmetic number, because the mean of its divisors is an integer number (117839241).

Almost surely, 2^445170449 is an apocalyptic number.

It is an amenable number.

445170449 is a deficient number, since it is larger than the sum of its proper divisors (26186515).

445170449 is a wasteful number, since it uses less digits than its factorization.

445170449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26186514.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 445170449 is about 21099.0627516959. The cubic root of 445170449 is about 763.5581361918.

The spelling of 445170449 in words is "four hundred forty-five million, one hundred seventy thousand, four hundred forty-nine".