6638412 has 24 divisors (see below), whose sum is σ = 16898112. Its totient is φ = 2011600.

The previous prime is 6638407. The next prime is 6638459. The reversal of 6638412 is 2148366.

It is a self number, because there is not a number n which added to its sum of digits gives 6638412.

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, 25014 + ... + 25277.

It is an arithmetic number, because the mean of its divisors is an integer number (704088).

Almost surely, 2^6638412 is an apocalyptic number.

It is an amenable number.

6638412 is an abundant number, since it is smaller than the sum of its proper divisors (10259700).

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

6638412 is a wasteful number, since it uses less digits than its factorization.

6638412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50309 (or 50307 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 6638412 is about 2576.5115951612. The cubic root of 6638412 is about 187.9409426692.

The spelling of 6638412 in words is "six million, six hundred thirty-eight thousand, four hundred twelve".