8138404 has 12 divisors (see below), whose sum is σ = 14306544. Its totient is φ = 4050824.

The previous prime is 8138387. The next prime is 8138413. The reversal of 8138404 is 4048318.

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, 3574 + ... + 5389.

It is an arithmetic number, because the mean of its divisors is an integer number (1192212).

Almost surely, 2^8138404 is an apocalyptic number.

It is an amenable number.

8138404 is a deficient number, since it is larger than the sum of its proper divisors (6168140).

8138404 is a wasteful number, since it uses less digits than its factorization.

8138404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9194 (or 9192 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 8138404 is about 2852.7888109708. The cubic root of 8138404 is about 201.1467785932.

The spelling of 8138404 in words is "eight million, one hundred thirty-eight thousand, four hundred four".