16822349 has 4 divisors (see below), whose sum is σ = 17402460. Its totient is φ = 16242240.

The previous prime is 16822343. The next prime is 16822387. The reversal of 16822349 is 94322861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94322861 = 71 ⋅1328491.

It can be written as a sum of positive squares in 2 ways, for example, as 7562500 + 9259849 = 2750^2 + 3043^2 .

It is a cyclic number.

It is not a de Polignac number, because 16822349 - 2¹⁶ = 16756813 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 (16822343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290012 + ... + 290069.

It is an arithmetic number, because the mean of its divisors is an integer number (4350615).

Almost surely, 2^16822349 is an apocalyptic number.

It is an amenable number.

16822349 is a deficient number, since it is larger than the sum of its proper divisors (580111).

16822349 is an equidigital number, since it uses as much as digits as its factorization.

16822349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580110.

The product of its digits is 20736, while the sum is 35.

The square root of 16822349 is about 4101.5056991305. The cubic root of 16822349 is about 256.2293527683.

It can be divided in two parts, 16822 and 349, that added together give a palindrome (17171).

The spelling of 16822349 in words is "sixteen million, eight hundred twenty-two thousand, three hundred forty-nine".