447239245 has 16 divisors (see below), whose sum is σ = 545027760. Its totient is φ = 352249344.

The previous prime is 447239231. The next prime is 447239267. The reversal of 447239245 is 542932744.

It can be written as a sum of positive squares in 8 ways, for example, as 102839881 + 344399364 = 10141^2 + 18558^2 .

It is a cyclic number.

It is not a de Polignac number, because 447239245 - 2⁹ = 447238733 is a prime.

Its product of digits (241920) is a multiple of the sum of its prime divisors (2304).

It is a junction number, because it is equal to n+sod(n) for n = 447239198 and 447239207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363291 + ... + 364519.

It is an arithmetic number, because the mean of its divisors is an integer number (34064235).

Almost surely, 2^447239245 is an apocalyptic number.

It is an amenable number.

447239245 is a deficient number, since it is larger than the sum of its proper divisors (97788515).

447239245 is a wasteful number, since it uses less digits than its factorization.

447239245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304.

The product of its digits is 241920, while the sum is 40.

The square root of 447239245 is about 21148.0317051020. The cubic root of 447239245 is about 764.7391110616.

The spelling of 447239245 in words is "four hundred forty-seven million, two hundred thirty-nine thousand, two hundred forty-five".