447717442 has 16 divisors (see below), whose sum is σ = 676683000. Its totient is φ = 222163200.

The previous prime is 447717433. The next prime is 447717443. The reversal of 447717442 is 244717744.

It can be written as a sum of positive squares in 4 ways, for example, as 447703281 + 14161 = 21159^2 + 119^2 .

It is a junction number, because it is equal to n+sod(n) for n = 447717395 and 447717404.

It is not an unprimeable number, because it can be changed into a prime (447717443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 158442 + ... + 161242.

Almost surely, 2^447717442 is an apocalyptic number.

447717442 is a deficient number, since it is larger than the sum of its proper divisors (228965558).

447717442 is a wasteful number, since it uses less digits than its factorization.

447717442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381.

The product of its digits is 175616, while the sum is 40.

The square root of 447717442 is about 21159.3346303706. The cubic root of 447717442 is about 765.0115720123.

The spelling of 447717442 in words is "four hundred forty-seven million, seven hundred seventeen thousand, four hundred forty-two".