23440433 has 16 divisors (see below), whose sum is σ = 26979840. Its totient is φ = 20217600.

The previous prime is 23440423. The next prime is 23440441. The reversal of 23440433 is 33404432.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23440433 - 2⁶ = 23440369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23440399 and 23440408.

It is not an unprimeable number, because it can be changed into a prime (23440423) 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, 8843 + ... + 11183.

It is an arithmetic number, because the mean of its divisors is an integer number (1686240).

Almost surely, 2^23440433 is an apocalyptic number.

It is an amenable number.

23440433 is a deficient number, since it is larger than the sum of its proper divisors (3539407).

23440433 is a wasteful number, since it uses less digits than its factorization.

23440433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 23440433 is about 4841.5320922204. The cubic root of 23440433 is about 286.1904977293.

Adding to 23440433 its reverse (33404432), we get a palindrome (56844865).

The spelling of 23440433 in words is "twenty-three million, four hundred forty thousand, four hundred thirty-three".