22261329 has 12 divisors (see below), whose sum is σ = 32213376. Its totient is φ = 14814072.

The previous prime is 22261321. The next prime is 22261361. The reversal of 22261329 is 92316222.

22261329 is a `hidden beast` number, since 2 + 22 + 613 + 29 = 666.

It is not a de Polignac number, because 22261329 - 2³ = 22261321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22261321) 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 11 ways as a sum of consecutive naturals, for example, 3912 + ... + 7734.

It is an arithmetic number, because the mean of its divisors is an integer number (2684448).

Almost surely, 2^22261329 is an apocalyptic number.

It is an amenable number.

22261329 is a deficient number, since it is larger than the sum of its proper divisors (9952047).

22261329 is a wasteful number, since it uses less digits than its factorization.

22261329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476 (or 4473 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 22261329 is about 4718.1912848040. The cubic root of 22261329 is about 281.3090447886.

The spelling of 22261329 in words is "twenty-two million, two hundred sixty-one thousand, three hundred twenty-nine".