447728534 has 32 divisors (see below), whose sum is σ = 766215936. Its totient is φ = 194228320.

The previous prime is 447728531. The next prime is 447728543. The reversal of 447728534 is 435827744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447728531) 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, 341909 + ... + 343215.

It is an arithmetic number, because the mean of its divisors is an integer number (23944248).

Almost surely, 2^447728534 is an apocalyptic number.

447728534 is a deficient number, since it is larger than the sum of its proper divisors (318487402).

447728534 is a wasteful number, since it uses less digits than its factorization.

447728534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020.

The product of its digits is 752640, while the sum is 44.

The square root of 447728534 is about 21159.5967352877. The cubic root of 447728534 is about 765.0178895670.

The spelling of 447728534 in words is "four hundred forty-seven million, seven hundred twenty-eight thousand, five hundred thirty-four".