22433021 has 4 divisors (see below), whose sum is σ = 24158652. Its totient is φ = 20707392.

The previous prime is 22433011. The next prime is 22433041. The reversal of 22433021 is 12033422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5827396 + 16605625 = 2414^2 + 4075^2 .

It is a cyclic number.

It is not a de Polignac number, because 22433021 - 2⁶ = 22432957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22433011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862796 + ... + 862821.

It is an arithmetic number, because the mean of its divisors is an integer number (6039663).

Almost surely, 2^22433021 is an apocalyptic number.

It is an amenable number.

22433021 is a deficient number, since it is larger than the sum of its proper divisors (1725631).

22433021 is a wasteful number, since it uses less digits than its factorization.

22433021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725630.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22433021 is about 4736.3510216199. The cubic root of 22433021 is about 282.0303984466.

Adding to 22433021 its reverse (12033422), we get a palindrome (34466443).

The spelling of 22433021 in words is "twenty-two million, four hundred thirty-three thousand, twenty-one".