6328638 has 32 divisors (see below), whose sum is σ = 14169600. Its totient is φ = 2093688.

The previous prime is 6328633. The next prime is 6328639. The reversal of 6328638 is 8368236.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6328631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8443 + ... + 9161.

It is an arithmetic number, because the mean of its divisors is an integer number (442800).

Almost surely, 2^6328638 is an apocalyptic number.

6328638 is an abundant number, since it is smaller than the sum of its proper divisors (7840962).

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

6328638 is a wasteful number, since it uses less digits than its factorization.

6328638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 887 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 6328638 is about 2515.6784373206. The cubic root of 6328638 is about 184.9709036295.

The spelling of 6328638 in words is "six million, three hundred twenty-eight thousand, six hundred thirty-eight".