6629406 has 24 divisors (see below), whose sum is σ = 15424200. Its totient is φ = 1894032.

The previous prime is 6629393. The next prime is 6629407. The reversal of 6629406 is 6049266.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6629407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10981 + ... + 11568.

It is an arithmetic number, because the mean of its divisors is an integer number (642675).

Almost surely, 2^6629406 is an apocalyptic number.

6629406 is an abundant number, since it is smaller than the sum of its proper divisors (8794794).

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

6629406 is a wasteful number, since it uses less digits than its factorization.

6629406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22568 (or 22561 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 6629406 is about 2574.7632900910. The cubic root of 6629406 is about 187.8559141952.

The spelling of 6629406 in words is "six million, six hundred twenty-nine thousand, four hundred six".