22384429 has 4 divisors (see below), whose sum is σ = 22396284. Its totient is φ = 22372576.

The previous prime is 22384403. The next prime is 22384457. The reversal of 22384429 is 92448322.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2340900 + 20043529 = 1530^2 + 4477^2 .

It is a cyclic number.

It is not a de Polignac number, because 22384429 - 2¹⁵ = 22351661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22384394 and 22384403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22384829) 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, 2392 + ... + 7105.

It is an arithmetic number, because the mean of its divisors is an integer number (5599071).

Almost surely, 2^22384429 is an apocalyptic number.

It is an amenable number.

22384429 is a deficient number, since it is larger than the sum of its proper divisors (11855).

22384429 is an equidigital number, since it uses as much as digits as its factorization.

22384429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11854.

The product of its digits is 27648, while the sum is 34.

The square root of 22384429 is about 4731.2185533962. The cubic root of 22384429 is about 281.8266165892.

The spelling of 22384429 in words is "twenty-two million, three hundred eighty-four thousand, four hundred twenty-nine".