478449448 has 8 divisors (see below), whose sum is σ = 897092730. Its totient is φ = 239224720.

The previous prime is 478449437. The next prime is 478449481. The reversal of 478449448 is 844944874.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 344399364 + 134050084 = 18558^2 + 11578^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 478449395 and 478449404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29903083 + ... + 29903098.

Almost surely, 2^478449448 is an apocalyptic number.

It is an amenable number.

478449448 is a deficient number, since it is larger than the sum of its proper divisors (418643282).

478449448 is a wasteful number, since it uses less digits than its factorization.

478449448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59806187 (or 59806183 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 52.

The square root of 478449448 is about 21873.4873305561. The cubic root of 478449448 is about 782.1295346456.

The spelling of 478449448 in words is "four hundred seventy-eight million, four hundred forty-nine thousand, four hundred forty-eight".