447078438 has 12 divisors (see below), whose sum is σ = 968669988. Its totient is φ = 149026140.

The previous prime is 447078397. The next prime is 447078451. The reversal of 447078438 is 834870744.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 447078393 and 447078402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12418828 + ... + 12418863.

It is an arithmetic number, because the mean of its divisors is an integer number (80722499).

Almost surely, 2^447078438 is an apocalyptic number.

447078438 is an abundant number, since it is smaller than the sum of its proper divisors (521591550).

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

447078438 is a wasteful number, since it uses less digits than its factorization.

447078438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24837699 (or 24837696 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The square root of 447078438 is about 21144.2294255430. The cubic root of 447078438 is about 764.6474448782.

The spelling of 447078438 in words is "four hundred forty-seven million, seventy-eight thousand, four hundred thirty-eight".