6404126 has 16 divisors (see below), whose sum is σ = 9889344. Its totient is φ = 3108864.

The previous prime is 6404117. The next prime is 6404131. The reversal of 6404126 is 6214046.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17966 + ... + 18318.

It is an arithmetic number, because the mean of its divisors is an integer number (618084).

Almost surely, 2^6404126 is an apocalyptic number.

6404126 is a deficient number, since it is larger than the sum of its proper divisors (3485218).

6404126 is a wasteful number, since it uses less digits than its factorization.

6404126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 6404126 is about 2530.6374690975. The cubic root of 6404126 is about 185.7034430976.

The spelling of 6404126 in words is "six million, four hundred four thousand, one hundred twenty-six".