447356440 has 64 divisors (see below), whose sum is σ = 1053907200. Its totient is φ = 170577792.

The previous prime is 447356369. The next prime is 447356489. The reversal of 447356440 is 44653744.

It is a self number, because there is not a number n which added to its sum of digits gives 447356440.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 348039 + ... + 349321.

It is an arithmetic number, because the mean of its divisors is an integer number (16467300).

Almost surely, 2^447356440 is an apocalyptic number.

447356440 is a gapful number since it is divisible by the number (40) 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 447356440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526953600).

447356440 is an abundant number, since it is smaller than the sum of its proper divisors (606550760).

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

447356440 is a wasteful number, since it uses less digits than its factorization.

447356440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 37.

The square root of 447356440 is about 21150.8023488472. The cubic root of 447356440 is about 764.8059028842.

The spelling of 447356440 in words is "four hundred forty-seven million, three hundred fifty-six thousand, four hundred forty".