22031433 has 20 divisors (see below), whose sum is σ = 33249348. Its totient is φ = 14536800.

The previous prime is 22031423. The next prime is 22031459. The reversal of 22031433 is 33413022.

It can be written as a sum of positive squares in 2 ways, for example, as 16257024 + 5774409 = 4032^2 + 2403^2 .

It is not a de Polignac number, because 22031433 - 2¹⁰ = 22030409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22031413) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6835 + ... + 9527.

Almost surely, 2^22031433 is an apocalyptic number.

It is an amenable number.

22031433 is a deficient number, since it is larger than the sum of its proper divisors (11217915).

22031433 is a wasteful number, since it uses less digits than its factorization.

22031433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806 (or 2797 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 22031433 is about 4693.7653328644. The cubic root of 22031433 is about 280.3373188056.

Adding to 22031433 its reverse (33413022), we get a palindrome (55444455).

The spelling of 22031433 in words is "twenty-two million, thirty-one thousand, four hundred thirty-three".