808440892 has 48 divisors (see below), whose sum is σ = 1715857920. Its totient is φ = 325778112.

The previous prime is 808440887. The next prime is 808440931. The reversal of 808440892 is 298044808.

808440892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27358 + ... + 48634.

It is an arithmetic number, because the mean of its divisors is an integer number (35747040).

Almost surely, 2^808440892 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 808440892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (857928960).

808440892 is an abundant number, since it is smaller than the sum of its proper divisors (907417028).

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

808440892 is a wasteful number, since it uses less digits than its factorization.

808440892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21370 (or 21368 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 808440892 is about 28433.0950126784. The cubic root of 808440892 is about 931.5712798523.

The spelling of 808440892 in words is "eight hundred eight million, four hundred forty thousand, eight hundred ninety-two".