6438236 has 12 divisors (see below), whose sum is σ = 12876528. Its totient is φ = 2759232.

The previous prime is 6438199. The next prime is 6438241. The reversal of 6438236 is 6328346.

6438236 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114941 + ... + 114996.

It is an arithmetic number, because the mean of its divisors is an integer number (1073044).

Almost surely, 2^6438236 is an apocalyptic number.

It is an amenable number.

6438236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6438236 is a wasteful number, since it uses less digits than its factorization.

6438236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229948 (or 229946 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 6438236 is about 2537.3679275974. The cubic root of 6438236 is about 186.0325606850.

The spelling of 6438236 in words is "six million, four hundred thirty-eight thousand, two hundred thirty-six".