23638328 has 16 divisors (see below), whose sum is σ = 50653680. Its totient is φ = 10130688.

The previous prime is 23638327. The next prime is 23638331. The reversal of 23638328 is 82383632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23638327) 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 3 ways as a sum of consecutive naturals, for example, 211001 + ... + 211112.

It is an arithmetic number, because the mean of its divisors is an integer number (3165855).

Almost surely, 2^23638328 is an apocalyptic number.

23638328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23638328 is an abundant number, since it is smaller than the sum of its proper divisors (27015352).

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

23638328 is a wasteful number, since it uses less digits than its factorization.

23638328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422126 (or 422122 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 23638328 is about 4861.9263671923. The cubic root of 23638328 is about 286.9936261013.

The spelling of 23638328 in words is "twenty-three million, six hundred thirty-eight thousand, three hundred twenty-eight".