22408349 has 2 divisors, whose sum is σ = 22408350. Its totient is φ = 22408348.

The previous prime is 22408339. The next prime is 22408361. The reversal of 22408349 is 94380422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11682724 + 10725625 = 3418^2 + 3275^2 .

It is a cyclic number.

It is not a de Polignac number, because 22408349 - 2⁴ = 22408333 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22408339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11204174 + 11204175.

It is an arithmetic number, because the mean of its divisors is an integer number (11204175).

Almost surely, 2^22408349 is an apocalyptic number.

It is an amenable number.

22408349 is a deficient number, since it is larger than the sum of its proper divisors (1).

22408349 is an equidigital number, since it uses as much as digits as its factorization.

22408349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 22408349 is about 4733.7457684164. The cubic root of 22408349 is about 281.9269674901.

The spelling of 22408349 in words is "twenty-two million, four hundred eight thousand, three hundred forty-nine".