22406849 has 4 divisors (see below), whose sum is σ = 22690560. Its totient is φ = 22123140.

The previous prime is 22406779. The next prime is 22406851. The reversal of 22406849 is 94860422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22406849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22456849) 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, 141737 + ... + 141894.

It is an arithmetic number, because the mean of its divisors is an integer number (5672640).

Almost surely, 2^22406849 is an apocalyptic number.

It is an amenable number.

22406849 is a deficient number, since it is larger than the sum of its proper divisors (283711).

22406849 is an equidigital number, since it uses as much as digits as its factorization.

22406849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283710.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 22406849 is about 4733.5873288659. The cubic root of 22406849 is about 281.9206766817.

The spelling of 22406849 in words is "twenty-two million, four hundred six thousand, eight hundred forty-nine".