22321369 has 4 divisors (see below), whose sum is σ = 25510144. Its totient is φ = 19132596.

The previous prime is 22321363. The next prime is 22321379. The reversal of 22321369 is 96312322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96312322 = 2 ⋅48156161.

It is not a de Polignac number, because 22321369 - 2⁵ = 22321337 is a prime.

It is a super-3 number, since 3×22321369³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22321363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1594377 + ... + 1594390.

It is an arithmetic number, because the mean of its divisors is an integer number (6377536).

Almost surely, 2^22321369 is an apocalyptic number.

It is an amenable number.

22321369 is a deficient number, since it is larger than the sum of its proper divisors (3188775).

22321369 is an equidigital number, since it uses as much as digits as its factorization.

22321369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188774.

The product of its digits is 3888, while the sum is 28.

The square root of 22321369 is about 4724.5496081637. The cubic root of 22321369 is about 281.5617196332.

The spelling of 22321369 in words is "twenty-two million, three hundred twenty-one thousand, three hundred sixty-nine".