447203020 has 96 divisors (see below), whose sum is σ = 1095716160. Its totient is φ = 151511040.

The previous prime is 447202991. The next prime is 447203021. The reversal of 447203020 is 20302744.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 447202982 and 447203000.

It is not an unprimeable number, because it can be changed into a prime (447203021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 407112 + ... + 408208.

It is an arithmetic number, because the mean of its divisors is an integer number (11413710).

Almost surely, 2^447203020 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 447203020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547858080).

447203020 is an abundant number, since it is smaller than the sum of its proper divisors (648513140).

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

447203020 is a wasteful number, since it uses less digits than its factorization.

447203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 447203020 is about 21147.1752250744. The cubic root of 447203020 is about 764.7184633340.

Adding to 447203020 its reverse (20302744), we get a palindrome (467505764).

The spelling of 447203020 in words is "four hundred forty-seven million, two hundred three thousand, twenty".