22339549 has 2 divisors, whose sum is σ = 22339550. Its totient is φ = 22339548.

The previous prime is 22339543. The next prime is 22339571. The reversal of 22339549 is 94593322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22325625 + 13924 = 4725^2 + 118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22339549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22339543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11169774 + 11169775.

It is an arithmetic number, because the mean of its divisors is an integer number (11169775).

Almost surely, 2^22339549 is an apocalyptic number.

It is an amenable number.

22339549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22339549 is an equidigital number, since it uses as much as digits as its factorization.

22339549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 37.

The square root of 22339549 is about 4726.4732094872. The cubic root of 22339549 is about 281.6381397219.

The spelling of 22339549 in words is "twenty-two million, three hundred thirty-nine thousand, five hundred forty-nine".