808243812 has 96 divisors (see below), whose sum is σ = 2214643200. Its totient is φ = 254205216.

The previous prime is 808243771. The next prime is 808243817. The reversal of 808243812 is 218342808.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (808243817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 629323 + ... + 630605.

It is an arithmetic number, because the mean of its divisors is an integer number (23069200).

Almost surely, 2^808243812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808243812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1107321600).

808243812 is an abundant number, since it is smaller than the sum of its proper divisors (1406399388).

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

808243812 is a wasteful number, since it uses less digits than its factorization.

808243812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 808243812 is about 28429.6291217455. The cubic root of 808243812 is about 931.4955748790.

The spelling of 808243812 in words is "eight hundred eight million, two hundred forty-three thousand, eight hundred twelve".