22380641 has 2 divisors, whose sum is σ = 22380642. Its totient is φ = 22380640.

The previous prime is 22380637. The next prime is 22380703. The reversal of 22380641 is 14608322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17606416 + 4774225 = 4196^2 + 2185^2 .

It is a cyclic number.

It is not a de Polignac number, because 22380641 - 2² = 22380637 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22380641.

It is not a weakly prime, because it can be changed into another prime (22380341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11190320 + 11190321.

It is an arithmetic number, because the mean of its divisors is an integer number (11190321).

Almost surely, 2^22380641 is an apocalyptic number.

It is an amenable number.

22380641 is a deficient number, since it is larger than the sum of its proper divisors (1).

22380641 is an equidigital number, since it uses as much as digits as its factorization.

22380641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 22380641 is about 4730.8182167570. The cubic root of 22380641 is about 281.8107183436.

Adding to 22380641 its reverse (14608322), we get a palindrome (36988963).

The spelling of 22380641 in words is "twenty-two million, three hundred eighty thousand, six hundred forty-one".