447742272 has 56 divisors (see below), whose sum is σ = 1186379136. Its totient is φ = 149029888.

The previous prime is 447742271. The next prime is 447742289. The reversal of 447742272 is 272247744.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 447742272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447742271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181753 + ... + 184199.

Almost surely, 2^447742272 is an apocalyptic number.

It is an amenable number.

447742272 is an abundant number, since it is smaller than the sum of its proper divisors (738636864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447742272 is a wasteful number, since it uses less digits than its factorization.

447742272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415 (or 3405 counting only the distinct ones).

The product of its digits is 175616, while the sum is 39.

The square root of 447742272 is about 21159.9213609125. The cubic root of 447742272 is about 765.0257140316.

The spelling of 447742272 in words is "four hundred forty-seven million, seven hundred forty-two thousand, two hundred seventy-two".