23438165 has 16 divisors (see below), whose sum is σ = 28843776. Its totient is φ = 18278400.

The previous prime is 23438123. The next prime is 23438167. The reversal of 23438165 is 56183432.

It is not a de Polignac number, because 23438165 - 2¹² = 23434069 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23438167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36245 + ... + 36885.

It is an arithmetic number, because the mean of its divisors is an integer number (1802736).

Almost surely, 2^23438165 is an apocalyptic number.

It is an amenable number.

23438165 is a deficient number, since it is larger than the sum of its proper divisors (5405611).

23438165 is a wasteful number, since it uses less digits than its factorization.

23438165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820.

The product of its digits is 17280, while the sum is 32.

The square root of 23438165 is about 4841.2978631768. The cubic root of 23438165 is about 286.1812672260.

The spelling of 23438165 in words is "twenty-three million, four hundred thirty-eight thousand, one hundred sixty-five".