22286261 has 6 divisors (see below), whose sum is σ = 22609686. Its totient is φ = 21967400.

The previous prime is 22286233. The next prime is 22286279. The reversal of 22286261 is 16268222.

It can be written as a sum of positive squares in only one way, i.e., 21298225 + 988036 = 4615^2 + 994^2 .

It is not a de Polignac number, because 22286261 - 2⁶ = 22286197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22286161) 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 5 ways as a sum of consecutive naturals, for example, 2831 + ... + 7251.

It is an arithmetic number, because the mean of its divisors is an integer number (3768281).

Almost surely, 2^22286261 is an apocalyptic number.

It is an amenable number.

22286261 is a deficient number, since it is larger than the sum of its proper divisors (323425).

22286261 is an frugal number, since it uses more digits than its factorization.

22286261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563 (or 4492 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 22286261 is about 4720.8326596057. The cubic root of 22286261 is about 281.4140247503.

The spelling of 22286261 in words is "twenty-two million, two hundred eighty-six thousand, two hundred sixty-one".