23645238 has 32 divisors (see below), whose sum is σ = 48470400. Its totient is φ = 7687680.

The previous prime is 23645221. The next prime is 23645239. The reversal of 23645238 is 83254632.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23645199 and 23645208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23645239) 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, 52438 + ... + 52886.

It is an arithmetic number, because the mean of its divisors is an integer number (1514700).

Almost surely, 2^23645238 is an apocalyptic number.

23645238 is an abundant number, since it is smaller than the sum of its proper divisors (24825162).

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

23645238 is a wasteful number, since it uses less digits than its factorization.

23645238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652.

The product of its digits is 34560, while the sum is 33.

The square root of 23645238 is about 4862.6369389458. The cubic root of 23645238 is about 287.0215882137.

The spelling of 23645238 in words is "twenty-three million, six hundred forty-five thousand, two hundred thirty-eight".