22403441 has 4 divisors (see below), whose sum is σ = 22422900. Its totient is φ = 22383984.

The previous prime is 22403419. The next prime is 22403503. The reversal of 22403441 is 14430422.

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 22287841 + 115600 = 4721^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 22403441 - 2⁶ = 22403377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22403401) 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, 7886 + ... + 10343.

It is an arithmetic number, because the mean of its divisors is an integer number (5605725).

Almost surely, 2^22403441 is an apocalyptic number.

It is an amenable number.

22403441 is a deficient number, since it is larger than the sum of its proper divisors (19459).

22403441 is a wasteful number, since it uses less digits than its factorization.

22403441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19458.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 22403441 is about 4733.2273344939. The cubic root of 22403441 is about 281.9063829215.

Adding to 22403441 its reverse (14430422), we get a palindrome (36833863).

The spelling of 22403441 in words is "twenty-two million, four hundred three thousand, four hundred forty-one".