22144355 has 16 divisors (see below), whose sum is σ = 27439104. Its totient is φ = 17146080.

The previous prime is 22144333. The next prime is 22144361. The reversal of 22144355 is 55344122.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-22144355 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26900 + ... + 27710.

It is an arithmetic number, because the mean of its divisors is an integer number (1714944).

Almost surely, 2^22144355 is an apocalyptic number.

22144355 is a deficient number, since it is larger than the sum of its proper divisors (5294749).

22144355 is a wasteful number, since it uses less digits than its factorization.

22144355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its digits is 4800, while the sum is 26.

The square root of 22144355 is about 4705.7788940833. The cubic root of 22144355 is about 280.8154586758.

Adding to 22144355 its reverse (55344122), we get a palindrome (77488477).

The spelling of 22144355 in words is "twenty-two million, one hundred forty-four thousand, three hundred fifty-five".