22404329 has 2 divisors, whose sum is σ = 22404330. Its totient is φ = 22404328.

The previous prime is 22404307. The next prime is 22404341. The reversal of 22404329 is 92340422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15618304 + 6786025 = 3952^2 + 2605^2 .

It is a cyclic number.

It is not a de Polignac number, because 22404329 - 2⁸ = 22404073 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22404298 and 22404307.

It is not a weakly prime, because it can be changed into another prime (22404229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11202164 + 11202165.

It is an arithmetic number, because the mean of its divisors is an integer number (11202165).

Almost surely, 2^22404329 is an apocalyptic number.

It is an amenable number.

22404329 is a deficient number, since it is larger than the sum of its proper divisors (1).

22404329 is an equidigital number, since it uses as much as digits as its factorization.

22404329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 22404329 is about 4733.3211384819. The cubic root of 22404329 is about 281.9101074916.

The spelling of 22404329 in words is "twenty-two million, four hundred four thousand, three hundred twenty-nine".