812690448 has 40 divisors (see below), whose sum is σ = 2102984448. Its totient is φ = 270440832.

The previous prime is 812690447. The next prime is 812690471. The reversal of 812690448 is 844096218.

It is not an unprimeable number, because it can be changed into a prime (812690443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15190 + ... + 43082.

Almost surely, 2^812690448 is an apocalyptic number.

It is an amenable number.

812690448 is an abundant number, since it is smaller than the sum of its proper divisors (1290294000).

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

812690448 is a wasteful number, since it uses less digits than its factorization.

812690448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28511 (or 28505 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 812690448 is about 28507.7261106529. The cubic root of 812690448 is about 933.2006911276.

The spelling of 812690448 in words is "eight hundred twelve million, six hundred ninety thousand, four hundred forty-eight".