23038 has 4 divisors (see below), whose sum is σ = 34560.
Its totient is φ = 11518.
The previous prime is 23029. The next prime is 23039. The reversal of 23038 is 83032.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is an alternating number because its digits alternate between even and odd.
It is a nialpdrome in base 13.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23039) by changing a digit.
23038 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 5758 + ... + 5761.
It is an arithmetic number, because the mean of its divisors is an integer number (8640).
223038 is an apocalyptic number.
23038 is a deficient number, since it is larger than the sum of its proper divisors (11522).
23038 is a wasteful number, since it uses less digits than its factorization.
23038 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11521.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 23038 is about 151.7827394666.
The cubic root of 23038 is about 28.4543230572.
The spelling of 23038 in words is "twenty-three thousand, thirty-eight".