447128534 has 32 divisors (see below), whose sum is σ = 708057504. Its totient is φ = 211518720.

The previous prime is 447128503. The next prime is 447128537. The reversal of 447128534 is 435821744.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447128537) 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, 609632 + ... + 610364.

It is an arithmetic number, because the mean of its divisors is an integer number (22126797).

Almost surely, 2^447128534 is an apocalyptic number.

447128534 is a deficient number, since it is larger than the sum of its proper divisors (260928970).

447128534 is a wasteful number, since it uses less digits than its factorization.

447128534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its digits is 107520, while the sum is 38.

The square root of 447128534 is about 21145.4140181742. The cubic root of 447128534 is about 764.6760038845.

The spelling of 447128534 in words is "four hundred forty-seven million, one hundred twenty-eight thousand, five hundred thirty-four".