22231329 has 8 divisors (see below), whose sum is σ = 30272640. Its totient is φ = 14505456.

The previous prime is 22231241. The next prime is 22231331. The reversal of 22231329 is 92313222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22231329 - 2¹³ = 22223137 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22231299 and 22231308.

It is not an unprimeable number, because it can be changed into a prime (22231369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78694 + ... + 78975.

It is an arithmetic number, because the mean of its divisors is an integer number (3784080).

Almost surely, 2^22231329 is an apocalyptic number.

It is an amenable number.

22231329 is a deficient number, since it is larger than the sum of its proper divisors (8041311).

22231329 is a wasteful number, since it uses less digits than its factorization.

22231329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157719.

The product of its digits is 1296, while the sum is 24.

The square root of 22231329 is about 4715.0110286191. The cubic root of 22231329 is about 281.1826212916.

The spelling of 22231329 in words is "twenty-two million, two hundred thirty-one thousand, three hundred twenty-nine".