447388488 has 128 divisors (see below), whose sum is σ = 1282867200. Its totient is φ = 144389952.

The previous prime is 447388463. The next prime is 447388519. The reversal of 447388488 is 884883744.

It is a happy number.

It is a super-2 number, since 2×447388488² = 400312918389852288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1289131 + ... + 1289477.

It is an arithmetic number, because the mean of its divisors is an integer number (10022400).

Almost surely, 2^447388488 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 447388488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641433600).

447388488 is an abundant number, since it is smaller than the sum of its proper divisors (835478712).

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

447388488 is a wasteful number, since it uses less digits than its factorization.

447388488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 526 counting only the distinct ones).

The product of its digits is 5505024, while the sum is 54.

The square root of 447388488 is about 21151.5599424723. The cubic root of 447388488 is about 764.8241656624.

The spelling of 447388488 in words is "four hundred forty-seven million, three hundred eighty-eight thousand, four hundred eighty-eight".