22434431 has 2 divisors, whose sum is σ = 22434432. Its totient is φ = 22434430.

The previous prime is 22434413. The next prime is 22434437. The reversal of 22434431 is 13443422.

Together with previous prime (22434413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22434431 - 2¹⁴ = 22418047 is a prime.

It is a super-2 number, since 2×22434431² = 1006607388587522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22434397 and 22434406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22434437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11217215 + 11217216.

It is an arithmetic number, because the mean of its divisors is an integer number (11217216).

Almost surely, 2^22434431 is an apocalyptic number.

22434431 is a deficient number, since it is larger than the sum of its proper divisors (1).

22434431 is an equidigital number, since it uses as much as digits as its factorization.

22434431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 23.

The square root of 22434431 is about 4736.4998680460. The cubic root of 22434431 is about 282.0363072144.

Adding to 22434431 its reverse (13443422), we get a palindrome (35877853).

The spelling of 22434431 in words is "twenty-two million, four hundred thirty-four thousand, four hundred thirty-one".