447309491344 has 45 divisors (see below), whose sum is σ = 890915651577. Its totient is φ = 217561868352.

The previous prime is 447309491297. The next prime is 447309491353. The reversal of 447309491344 is 443194903744.

It is a happy number.

The square root of 447309491344 is 668812.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 400258675600 + 47050815744 = 632660^2 + 216912^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 447309491291 and 447309491300.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 98981917 + ... + 98986435.

Almost surely, 2^447309491344 is an apocalyptic number.

447309491344 is the 668812-nd square number.

It is an amenable number.

447309491344 is a deficient number, since it is larger than the sum of its proper divisors (443606160233).

447309491344 is an frugal number, since it uses more digits than its factorization.

447309491344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9120 (or 4558 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 447309491344 in words is "four hundred forty-seven billion, three hundred nine million, four hundred ninety-one thousand, three hundred forty-four".