23328138 has 8 divisors (see below), whose sum is σ = 46656288. Its totient is φ = 7776044.

The previous prime is 23328113. The next prime is 23328197. The reversal of 23328138 is 83182332.

It is a sphenic number, since it is the product of 3 distinct primes.

23328138 is an admirable 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, 1944006 + ... + 1944017.

It is an arithmetic number, because the mean of its divisors is an integer number (5832036).

Almost surely, 2^23328138 is an apocalyptic number.

23328138 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.

23328138 is a wasteful number, since it uses less digits than its factorization.

23328138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888028.

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

The square root of 23328138 is about 4829.9211173683. The cubic root of 23328138 is about 285.7327527826.

The spelling of 23328138 in words is "twenty-three million, three hundred twenty-eight thousand, one hundred thirty-eight".