6404104 has 72 divisors (see below), whose sum is σ = 15282270. Its totient is φ = 2499840.

The previous prime is 6404089. The next prime is 6404117. The reversal of 6404104 is 4014046.

It can be written as a sum of positive squares in only one way, i.e., 4708900 + 1695204 = 2170^2 + 1302^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 206569 + ... + 206599.

Almost surely, 2^6404104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6404104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7641135).

6404104 is an abundant number, since it is smaller than the sum of its proper divisors (8878166).

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

6404104 is a wasteful number, since it uses less digits than its factorization.

6404104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 6404104 is about 2530.6331223629. The cubic root of 6404104 is about 185.7032304493.

The spelling of 6404104 in words is "six million, four hundred four thousand, one hundred four".