447389020 has 48 divisors (see below), whose sum is σ = 1017545760. Its totient is φ = 164249856.

The previous prime is 447389009. The next prime is 447389021. The reversal of 447389020 is 20983744.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447389021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41734 + ... + 51346.

It is an arithmetic number, because the mean of its divisors is an integer number (21198870).

Almost surely, 2^447389020 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 447389020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508772880).

447389020 is an abundant number, since it is smaller than the sum of its proper divisors (570156740).

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

447389020 is a wasteful number, since it uses less digits than its factorization.

447389020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9814 (or 9812 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 447389020 is about 21151.5725183732. The cubic root of 447389020 is about 764.8244688190.

The spelling of 447389020 in words is "four hundred forty-seven million, three hundred eighty-nine thousand, twenty".