447679728 has 240 divisors, whose sum is σ = 1392768000. Its totient is φ = 133765632.

The previous prime is 447679709. The next prime is 447679769. The reversal of 447679728 is 827976744.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5666793 + ... + 5666871.

It is an arithmetic number, because the mean of its divisors is an integer number (5803200).

Almost surely, 2^447679728 is an apocalyptic number.

447679728 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 447679728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696384000).

447679728 is an abundant number, since it is smaller than the sum of its proper divisors (945088272).

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

447679728 is a wasteful number, since it uses less digits than its factorization.

447679728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 195 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The square root of 447679728 is about 21158.4434210081. The cubic root of 447679728 is about 764.9900908623.

The spelling of 447679728 in words is "four hundred forty-seven million, six hundred seventy-nine thousand, seven hundred twenty-eight".