23401233 has 6 divisors (see below), whose sum is σ = 33801794. Its totient is φ = 15600816.

The previous prime is 23401211. The next prime is 23401267. The reversal of 23401233 is 33210432.

It can be written as a sum of positive squares in only one way, i.e., 13307904 + 10093329 = 3648^2 + 3177^2 .

It is not a de Polignac number, because 23401233 - 2⁸ = 23400977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23401633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1300060 + ... + 1300077.

Almost surely, 2^23401233 is an apocalyptic number.

It is an amenable number.

23401233 is a deficient number, since it is larger than the sum of its proper divisors (10400561).

23401233 is a wasteful number, since it uses less digits than its factorization.

23401233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600143 (or 2600140 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23401233 is about 4837.4820929901. The cubic root of 23401233 is about 286.0308742975.

Adding to 23401233 its reverse (33210432), we get a palindrome (56611665).

The spelling of 23401233 in words is "twenty-three million, four hundred one thousand, two hundred thirty-three".