6490904 has 32 divisors (see below), whose sum is σ = 14361600. Its totient is φ = 2691360.

The previous prime is 6490903. The next prime is 6490907. The reversal of 6490904 is 4090946.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134 + ... + 3605.

It is an arithmetic number, because the mean of its divisors is an integer number (448800).

Almost surely, 2^6490904 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 6490904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7180800).

6490904 is an abundant number, since it is smaller than the sum of its proper divisors (7870696).

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

6490904 is a wasteful number, since it uses less digits than its factorization.

6490904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3783 (or 3779 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 6490904 is about 2547.7252599132. The cubic root of 6490904 is about 186.5384635573.

The spelling of 6490904 in words is "six million, four hundred ninety thousand, nine hundred four".