22344421 has 8 divisors (see below), whose sum is σ = 24789600. Its totient is φ = 19968240.

The previous prime is 22344419. The next prime is 22344451. The reversal of 22344421 is 12444322.

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 22344421 - 2¹ = 22344419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22344392 and 22344401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22344401) 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, 16566 + ... + 17863.

It is an arithmetic number, because the mean of its divisors is an integer number (3098700).

Almost surely, 2^22344421 is an apocalyptic number.

It is an amenable number.

22344421 is a deficient number, since it is larger than the sum of its proper divisors (2445179).

22344421 is a wasteful number, since it uses less digits than its factorization.

22344421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34499.

The product of its digits is 1536, while the sum is 22.

The square root of 22344421 is about 4726.9885762502. The cubic root of 22344421 is about 281.6586122521.

Adding to 22344421 its reverse (12444322), we get a palindrome (34788743).

Subtracting from 22344421 its reverse (12444322), we obtain a palindrome (9900099).

It can be divided in two parts, 223 and 44421, that added together give a palindrome (44644).

The spelling of 22344421 in words is "twenty-two million, three hundred forty-four thousand, four hundred twenty-one".