447799285440 has 1120 divisors, whose sum is σ = 1788406050816. Its totient is φ = 105614254080.

The previous prime is 447799285421. The next prime is 447799285477. The reversal of 447799285440 is 44582997744.

447799285440 is a `hidden beast` number, since 4 + 47 + 79 + 9 + 2 + 85 + 440 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1702658749 + ... + 1702659011.

Almost surely, 2^447799285440 is an apocalyptic number.

447799285440 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 447799285440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894203025408).

447799285440 is an abundant number, since it is smaller than the sum of its proper divisors (1340606765376).

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

447799285440 is a wasteful number, since it uses less digits than its factorization.

447799285440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 447799285440 in words is "four hundred forty-seven billion, seven hundred ninety-nine million, two hundred eighty-five thousand, four hundred forty".