447881346 has 64 divisors (see below), whose sum is σ = 1133015040. Its totient is φ = 129816720.

The previous prime is 447881333. The next prime is 447881347. The reversal of 447881346 is 643188744.

It is not an unprimeable number, because it can be changed into a prime (447881347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2730 + ... + 30053.

It is an arithmetic number, because the mean of its divisors is an integer number (17703360).

Almost surely, 2^447881346 is an apocalyptic number.

447881346 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 447881346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566507520).

447881346 is an abundant number, since it is smaller than the sum of its proper divisors (685133694).

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

447881346 is a wasteful number, since it uses less digits than its factorization.

447881346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32828 (or 32822 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 447881346 is about 21163.2073656145. The cubic root of 447881346 is about 765.1049144846.

The spelling of 447881346 in words is "four hundred forty-seven million, eight hundred eighty-one thousand, three hundred forty-six".