22404033 has 10 divisors (see below), whose sum is σ = 33467874. Its totient is φ = 14935968.

The previous prime is 22403987. The next prime is 22404061. The reversal of 22404033 is 33040422.

It can be written as a sum of positive squares in only one way, i.e., 20007729 + 2396304 = 4473^2 + 1548^2 .

It is not a de Polignac number, because 22404033 - 2¹⁰ = 22403009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22403997 and 22404015.

It is not an unprimeable number, because it can be changed into a prime (22404073) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 138216 + ... + 138377.

Almost surely, 2^22404033 is an apocalyptic number.

It is an amenable number.

22404033 is a deficient number, since it is larger than the sum of its proper divisors (11063841).

22404033 is an equidigital number, since it uses as much as digits as its factorization.

22404033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276605 (or 276596 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22404033 is about 4733.2898706925. The cubic root of 22404033 is about 281.9088659792.

Adding to 22404033 its reverse (33040422), we get a palindrome (55444455).

The spelling of 22404033 in words is "twenty-two million, four hundred four thousand, thirty-three".