819634252 has 12 divisors (see below), whose sum is σ = 1440313336. Its totient is φ = 408116160.

The previous prime is 819634219. The next prime is 819634259. The reversal of 819634252 is 252436918.

It is not an unprimeable number, because it can be changed into a prime (819634259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424158 + ... + 426085.

Almost surely, 2^819634252 is an apocalyptic number.

It is an amenable number.

819634252 is a deficient number, since it is larger than the sum of its proper divisors (620679084).

819634252 is a wasteful number, since it uses less digits than its factorization.

819634252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850488 (or 850486 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 819634252 is about 28629.2551771785. The cubic root of 819634252 is about 935.8509804278.

The spelling of 819634252 in words is "eight hundred nineteen million, six hundred thirty-four thousand, two hundred fifty-two".