811904492 has 12 divisors (see below), whose sum is σ = 1623809040. Its totient is φ = 347959056.

The previous prime is 811904417. The next prime is 811904507. The reversal of 811904492 is 294409118.

811904492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

811904492 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14498267 + ... + 14498322.

It is an arithmetic number, because the mean of its divisors is an integer number (135317420).

Almost surely, 2^811904492 is an apocalyptic number.

It is an amenable number.

811904492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

811904492 is a wasteful number, since it uses less digits than its factorization.

811904492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28996600 (or 28996598 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 811904492 is about 28493.9378114012. The cubic root of 811904492 is about 932.8997601258.

The spelling of 811904492 in words is "eight hundred eleven million, nine hundred four thousand, four hundred ninety-two".