22232404 has 6 divisors (see below), whose sum is σ = 38906714. Its totient is φ = 11116200.

The previous prime is 22232401. The next prime is 22232407. The reversal of 22232404 is 40423222.

It is an interprime number because it is at equal distance from previous prime (22232401) and next prime (22232407).

It can be written as a sum of positive squares in only one way, i.e., 19342404 + 2890000 = 4398^2 + 1700^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22232401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2779047 + ... + 2779054.

Almost surely, 2^22232404 is an apocalyptic number.

It is an amenable number.

22232404 is a deficient number, since it is larger than the sum of its proper divisors (16674310).

22232404 is a wasteful number, since it uses less digits than its factorization.

22232404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558105 (or 5558103 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22232404 is about 4715.1250248535. The cubic root of 22232404 is about 281.1871534310.

Adding to 22232404 its reverse (40423222), we get a palindrome (62655626).

The spelling of 22232404 in words is "twenty-two million, two hundred thirty-two thousand, four hundred four".