812886432 has 48 divisors (see below), whose sum is σ = 2179239552. Its totient is φ = 265195520.

The previous prime is 812886413. The next prime is 812886461. The reversal of 812886432 is 234688218.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 85569 + ... + 94592.

It is an arithmetic number, because the mean of its divisors is an integer number (45400824).

Almost surely, 2^812886432 is an apocalyptic number.

It is an amenable number.

812886432 is an abundant number, since it is smaller than the sum of its proper divisors (1366353120).

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

812886432 is a wasteful number, since it uses less digits than its factorization.

812886432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180221 (or 180213 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 812886432 is about 28511.1632873862. The cubic root of 812886432 is about 933.2757002961.

It can be divided in two parts, 812886 and 432, that added together give a palindrome (813318).

The spelling of 812886432 in words is "eight hundred twelve million, eight hundred eighty-six thousand, four hundred thirty-two".