447138288 has 60 divisors (see below), whose sum is σ = 1262486160. Its totient is φ = 147721728.

The previous prime is 447138283. The next prime is 447138337. The reversal of 447138288 is 882831744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447138283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2533 + ... + 30011.

It is an arithmetic number, because the mean of its divisors is an integer number (21041436).

Almost surely, 2^447138288 is an apocalyptic number.

447138288 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447138288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631243080).

447138288 is an abundant number, since it is smaller than the sum of its proper divisors (815347872).

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

447138288 is a wasteful number, since it uses less digits than its factorization.

447138288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27606 (or 27597 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 447138288 is about 21145.6446579432. The cubic root of 447138288 is about 764.6815642509.

The spelling of 447138288 in words is "four hundred forty-seven million, one hundred thirty-eight thousand, two hundred eighty-eight".