811408004 has 12 divisors (see below), whose sum is σ = 1549051728. Its totient is φ = 368821800.

The previous prime is 811408001. The next prime is 811408009. The reversal of 811408004 is 400804118.

It is not an unprimeable number, because it can be changed into a prime (811408001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9220502 + ... + 9220589.

It is an arithmetic number, because the mean of its divisors is an integer number (129087644).

Almost surely, 2^811408004 is an apocalyptic number.

It is an amenable number.

811408004 is a deficient number, since it is larger than the sum of its proper divisors (737643724).

811408004 is a wasteful number, since it uses less digits than its factorization.

811408004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18441106 (or 18441104 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 811408004 is about 28485.2243101577. The cubic root of 811408004 is about 932.7095620650.

The spelling of 811408004 in words is "eight hundred eleven million, four hundred eight thousand, four".