23668938 has 12 divisors (see below), whose sum is σ = 51282738. Its totient is φ = 7889640.

The previous prime is 23668933. The next prime is 23668951. The reversal of 23668938 is 83986632.

It can be written as a sum of positive squares in only one way, i.e., 22496049 + 1172889 = 4743^2 + 1083^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23668893 and 23668902.

It is not an unprimeable number, because it can be changed into a prime (23668933) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 657453 + ... + 657488.

Almost surely, 2^23668938 is an apocalyptic number.

23668938 is an abundant number, since it is smaller than the sum of its proper divisors (27613800).

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

23668938 is a wasteful number, since it uses less digits than its factorization.

23668938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314949 (or 1314946 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 23668938 is about 4865.0732779682. The cubic root of 23668938 is about 287.1174516342.

The spelling of 23668938 in words is "twenty-three million, six hundred sixty-eight thousand, nine hundred thirty-eight".