811424404 has 48 divisors (see below), whose sum is σ = 1675215360. Its totient is φ = 336710880.

The previous prime is 811424401. The next prime is 811424407. The reversal of 811424404 is 404424118.

It is an interprime number because it is at equal distance from previous prime (811424401) and next prime (811424407).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811424401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107019 + ... + 114349.

It is an arithmetic number, because the mean of its divisors is an integer number (34900320).

Almost surely, 2^811424404 is an apocalyptic number.

It is an amenable number.

811424404 is an abundant number, since it is smaller than the sum of its proper divisors (863790956).

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

811424404 is a wasteful number, since it uses less digits than its factorization.

811424404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7468 (or 7466 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 811424404 is about 28485.5121772455. The cubic root of 811424404 is about 932.7158459294.

The spelling of 811424404 in words is "eight hundred eleven million, four hundred twenty-four thousand, four hundred four".