8143404 has 24 divisors (see below), whose sum is σ = 19515888. Its totient is φ = 2640960.

The previous prime is 8143351. The next prime is 8143427. The reversal of 8143404 is 4043418.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8727 + ... + 9614.

It is an arithmetic number, because the mean of its divisors is an integer number (813162).

Almost surely, 2^8143404 is an apocalyptic number.

It is an amenable number.

8143404 is an abundant number, since it is smaller than the sum of its proper divisors (11372484).

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

8143404 is a wasteful number, since it uses less digits than its factorization.

8143404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18385 (or 18383 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 8143404 is about 2853.6650118751. The cubic root of 8143404 is about 201.1879630809.

The spelling of 8143404 in words is "eight million, one hundred forty-three thousand, four hundred four".