23386638 has 24 divisors (see below), whose sum is σ = 51413544. Its totient is φ = 7086640.

The previous prime is 23386631. The next prime is 23386639. The reversal of 23386638 is 83668332.

It is a junction number, because it is equal to n+sod(n) for n = 23386596 and 23386605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23386631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15381 + ... + 16832.

It is an arithmetic number, because the mean of its divisors is an integer number (2142231).

Almost surely, 2^23386638 is an apocalyptic number.

23386638 is an abundant number, since it is smaller than the sum of its proper divisors (28026906).

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

23386638 is a wasteful number, since it uses less digits than its factorization.

23386638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32240 (or 32229 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 23386638 is about 4835.9733249885. The cubic root of 23386638 is about 285.9713975341.

The spelling of 23386638 in words is "twenty-three million, three hundred eighty-six thousand, six hundred thirty-eight".