812458448 has 20 divisors (see below), whose sum is σ = 1593106368. Its totient is φ = 401334240.

The previous prime is 812458433. The next prime is 812458453. The reversal of 812458448 is 844854218.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 812458399 and 812458408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304568 + ... + 307223.

Almost surely, 2^812458448 is an apocalyptic number.

It is an amenable number.

812458448 is a deficient number, since it is larger than the sum of its proper divisors (780647920).

812458448 is a wasteful number, since it uses less digits than its factorization.

812458448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611882 (or 611876 counting only the distinct ones).

The product of its digits is 327680, while the sum is 44.

The square root of 812458448 is about 28503.6567478631. The cubic root of 812458448 is about 933.1118819276. Note that the first 3 decimals are identical.

The spelling of 812458448 in words is "eight hundred twelve million, four hundred fifty-eight thousand, four hundred forty-eight".