22381369 has 8 divisors (see below), whose sum is σ = 23444352. Its totient is φ = 21325920.

The previous prime is 22381357. The next prime is 22381379. The reversal of 22381369 is 96318322.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22381369 - 2⁷ = 22381241 is a prime.

It is a super-2 number, since 2×22381369² = 1001851356628322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22381309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4732 + ... + 8194.

It is an arithmetic number, because the mean of its divisors is an integer number (2930544).

Almost surely, 2^22381369 is an apocalyptic number.

It is an amenable number.

22381369 is a deficient number, since it is larger than the sum of its proper divisors (1062983).

22381369 is a wasteful number, since it uses less digits than its factorization.

22381369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767.

The product of its digits is 15552, while the sum is 34.

The square root of 22381369 is about 4730.8951584240. The cubic root of 22381369 is about 281.8137739007.

The spelling of 22381369 in words is "twenty-two million, three hundred eighty-one thousand, three hundred sixty-nine".