447138516 has 24 divisors (see below), whose sum is σ = 1138171104. Its totient is φ = 135496480.

The previous prime is 447138481. The next prime is 447138529. The reversal of 447138516 is 615831744.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1693575 + ... + 1693838.

It is an arithmetic number, because the mean of its divisors is an integer number (47423796).

Almost surely, 2^447138516 is an apocalyptic number.

It is an amenable number.

447138516 is an abundant number, since it is smaller than the sum of its proper divisors (691032588).

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

447138516 is a wasteful number, since it uses less digits than its factorization.

447138516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387431 (or 3387429 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 447138516 is about 21145.6500491236. The cubic root of 447138516 is about 764.6816942237.

The spelling of 447138516 in words is "four hundred forty-seven million, one hundred thirty-eight thousand, five hundred sixteen".