6408906 has 24 divisors (see below), whose sum is σ = 14911200. Its totient is φ = 1831032.

The previous prime is 6408901. The next prime is 6408907. The reversal of 6408906 is 6098046.

It is a super-2 number, since 2×6408906² = 82148152233672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6408901) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 10606 + ... + 11193.

It is an arithmetic number, because the mean of its divisors is an integer number (621300).

Almost surely, 2^6408906 is an apocalyptic number.

6408906 is an abundant number, since it is smaller than the sum of its proper divisors (8502294).

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

6408906 is a wasteful number, since it uses less digits than its factorization.

6408906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21818 (or 21811 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 6408906 is about 2531.5817190049. The cubic root of 6408906 is about 185.7496342407.

The spelling of 6408906 in words is "six million, four hundred eight thousand, nine hundred six".