22402243 has 8 divisors (see below), whose sum is σ = 24485760. Its totient is φ = 20403840.

The previous prime is 22402223. The next prime is 22402271. The reversal of 22402243 is 34220422.

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-22402243 is a prime.

It is a super-3 number, since 3×22402243³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22402243.

It is not an unprimeable number, because it can be changed into a prime (22402223) 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, 20728 + ... + 21781.

It is an arithmetic number, because the mean of its divisors is an integer number (3060720).

Almost surely, 2^22402243 is an apocalyptic number.

22402243 is a deficient number, since it is larger than the sum of its proper divisors (2083517).

22402243 is a wasteful number, since it uses less digits than its factorization.

22402243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42557.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22402243 is about 4733.1007806722. The cubic root of 22402243 is about 281.9013579513.

Adding to 22402243 its reverse (34220422), we get a palindrome (56622665).

The spelling of 22402243 in words is "twenty-two million, four hundred two thousand, two hundred forty-three".