6738404 has 12 divisors (see below), whose sum is σ = 11824428. Its totient is φ = 3360000.

The previous prime is 6738383. The next prime is 6738419. The reversal of 6738404 is 4048376.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3841600 + 2896804 = 1960^2 + 1702^2 .

It is a congruent 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, 497 + ... + 3704.

It is an arithmetic number, because the mean of its divisors is an integer number (985369).

Almost surely, 2^6738404 is an apocalyptic number.

It is an amenable number.

6738404 is a deficient number, since it is larger than the sum of its proper divisors (5086024).

6738404 is a wasteful number, since it uses less digits than its factorization.

6738404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606 (or 4604 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 6738404 is about 2595.8436008358. The cubic root of 6738404 is about 188.8798729004.

Subtracting from 6738404 its product of nonzero digits (16128), we obtain a palindrome (6722276).

The spelling of 6738404 in words is "six million, seven hundred thirty-eight thousand, four hundred four".