22449437 has 4 divisors (see below), whose sum is σ = 22474236. Its totient is φ = 22424640.

The previous prime is 22449421. The next prime is 22449439. The reversal of 22449437 is 73494422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6497401 + 15952036 = 2549^2 + 3994^2 .

It is a cyclic number.

It is not a de Polignac number, because 22449437 - 2⁴ = 22449421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22449397 and 22449406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22449439) 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, 10988 + ... + 12869.

It is an arithmetic number, because the mean of its divisors is an integer number (5618559).

Almost surely, 2^22449437 is an apocalyptic number.

It is an amenable number.

22449437 is a deficient number, since it is larger than the sum of its proper divisors (24799).

22449437 is an equidigital number, since it uses as much as digits as its factorization.

22449437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24798.

The product of its digits is 48384, while the sum is 35.

The square root of 22449437 is about 4738.0836843602. The cubic root of 22449437 is about 282.0991762563.

The spelling of 22449437 in words is "twenty-two million, four hundred forty-nine thousand, four hundred thirty-seven".