22671261 has 24 divisors (see below), whose sum is σ = 35283456. Its totient is φ = 13986720.

The previous prime is 22671241. The next prime is 22671263. The reversal of 22671261 is 16217622.

It is not a de Polignac number, because 22671261 - 2⁶ = 22671197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22671263) 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 in 23 ways as a sum of consecutive naturals, for example, 4651 + ... + 8183.

It is an arithmetic number, because the mean of its divisors is an integer number (1470144).

Almost surely, 2^22671261 is an apocalyptic number.

It is an amenable number.

22671261 is a deficient number, since it is larger than the sum of its proper divisors (12612195).

22671261 is a wasteful number, since it uses less digits than its factorization.

22671261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593 (or 3590 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 22671261 is about 4761.4347627580. The cubic root of 22671261 is about 283.0252779512.

Adding to 22671261 its reverse (16217622), we get a palindrome (38888883).

The spelling of 22671261 in words is "twenty-two million, six hundred seventy-one thousand, two hundred sixty-one".