22238129 has 8 divisors (see below), whose sum is σ = 23027712. Its totient is φ = 21453120.

The previous prime is 22238119. The next prime is 22238137. The reversal of 22238129 is 92183222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22238129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22238119) 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 7 ways as a sum of consecutive naturals, for example, 10937 + ... + 12809.

It is an arithmetic number, because the mean of its divisors is an integer number (2878464).

Almost surely, 2^22238129 is an apocalyptic number.

It is an amenable number.

22238129 is a deficient number, since it is larger than the sum of its proper divisors (789583).

22238129 is a wasteful number, since it uses less digits than its factorization.

22238129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287.

The product of its digits is 3456, while the sum is 29.

The square root of 22238129 is about 4715.7320746624. The cubic root of 22238129 is about 281.2112872477.

The spelling of 22238129 in words is "twenty-two million, two hundred thirty-eight thousand, one hundred twenty-nine".