22130344 has 8 divisors (see below), whose sum is σ = 41494410. Its totient is φ = 11065168.

The previous prime is 22130341. The next prime is 22130351. The reversal of 22130344 is 44303122.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 1790244 = 4510^2 + 1338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22130341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383139 + ... + 1383154.

Almost surely, 2^22130344 is an apocalyptic number.

It is an amenable number.

22130344 is a deficient number, since it is larger than the sum of its proper divisors (19364066).

22130344 is a wasteful number, since it uses less digits than its factorization.

22130344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766299 (or 2766295 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 22130344 is about 4704.2899570498. The cubic root of 22130344 is about 280.7562210735.

Adding to 22130344 its reverse (44303122), we get a palindrome (66433466).

The spelling of 22130344 in words is "twenty-two million, one hundred thirty thousand, three hundred forty-four".