23420033 has 16 divisors (see below), whose sum is σ = 30522240. Its totient is φ = 17438976.

The previous prime is 23420021. The next prime is 23420039. The reversal of 23420033 is 33002432.

It is a cyclic number.

It is not a de Polignac number, because 23420033 - 2⁴ = 23420017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 23419993 and 23420020.

It is not an unprimeable number, because it can be changed into a prime (23420039) 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 15 ways as a sum of consecutive naturals, for example, 6023 + ... + 9116.

It is an arithmetic number, because the mean of its divisors is an integer number (1907640).

Almost surely, 2^23420033 is an apocalyptic number.

It is an amenable number.

23420033 is a deficient number, since it is larger than the sum of its proper divisors (7102207).

23420033 is a wasteful number, since it uses less digits than its factorization.

23420033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15176.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 23420033 is about 4839.4248625224. The cubic root of 23420033 is about 286.1074506194.

Adding to 23420033 its reverse (33002432), we get a palindrome (56422465).

The spelling of 23420033 in words is "twenty-three million, four hundred twenty thousand, thirty-three".