22705349 has 4 divisors (see below), whose sum is σ = 23259180. Its totient is φ = 22151520.

The previous prime is 22705343. The next prime is 22705351. The reversal of 22705349 is 94350722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94350722 = 2 ⋅47175361.

It can be written as a sum of positive squares in 2 ways, for example, as 4060225 + 18645124 = 2015^2 + 4318^2 .

It is a cyclic number.

It is not a de Polignac number, because 22705349 - 2⁸ = 22705093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22705343) 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 in 3 ways as a sum of consecutive naturals, for example, 276854 + ... + 276935.

It is an arithmetic number, because the mean of its divisors is an integer number (5814795).

Almost surely, 2^22705349 is an apocalyptic number.

It is an amenable number.

22705349 is a deficient number, since it is larger than the sum of its proper divisors (553831).

22705349 is an equidigital number, since it uses as much as digits as its factorization.

22705349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553830.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 22705349 is about 4765.0130115247. The cubic root of 22705349 is about 283.1670570715.

The spelling of 22705349 in words is "twenty-two million, seven hundred five thousand, three hundred forty-nine".