447408405 has 12 divisors (see below), whose sum is σ = 775507980. Its totient is φ = 238617792.

The previous prime is 447408391. The next prime is 447408439. The reversal of 447408405 is 504804744.

It can be written as a sum of positive squares in 2 ways, for example, as 226261764 + 221146641 = 15042^2 + 14871^2 .

It is not a de Polignac number, because 447408405 - 2⁴ = 447408389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 447408405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4971160 + ... + 4971249.

It is an arithmetic number, because the mean of its divisors is an integer number (64625665).

Almost surely, 2^447408405 is an apocalyptic number.

447408405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

447408405 is a deficient number, since it is larger than the sum of its proper divisors (328099575).

447408405 is a wasteful number, since it uses less digits than its factorization.

447408405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9942420 (or 9942417 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 447408405 is about 21152.0307535707. The cubic root of 447408405 is about 764.8355150655.

The spelling of 447408405 in words is "four hundred forty-seven million, four hundred eight thousand, four hundred five".