447389072 has 40 divisors (see below), whose sum is σ = 938965944. Its totient is φ = 205277184.

The previous prime is 447389069. The next prime is 447389081. The reversal of 447389072 is 270983744.

It can be written as a sum of positive squares in 4 ways, for example, as 23193856 + 424195216 = 4816^2 + 20596^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29768 + ... + 42200.

Almost surely, 2^447389072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447389072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469482972).

447389072 is an abundant number, since it is smaller than the sum of its proper divisors (491576872).

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

447389072 is a wasteful number, since it uses less digits than its factorization.

447389072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12627 (or 12621 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 447389072 is about 21151.5737475962. The cubic root of 447389072 is about 764.8244984508.

The spelling of 447389072 in words is "four hundred forty-seven million, three hundred eighty-nine thousand, seventy-two".