22444513 has 8 divisors (see below), whose sum is σ = 27624128. Its totient is φ = 17758224.

The previous prime is 22444483. The next prime is 22444547. The reversal of 22444513 is 31544422.

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 22444513 - 2²¹ = 20347361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22442513) 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, 123231 + ... + 123412.

It is an arithmetic number, because the mean of its divisors is an integer number (3453016).

Almost surely, 2^22444513 is an apocalyptic number.

It is an amenable number.

22444513 is a deficient number, since it is larger than the sum of its proper divisors (5179615).

22444513 is a wasteful number, since it uses less digits than its factorization.

22444513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246663.

The product of its digits is 3840, while the sum is 25.

The square root of 22444513 is about 4737.5640365065. The cubic root of 22444513 is about 282.0785497864.

Adding to 22444513 its reverse (31544422), we get a palindrome (53988935).

Subtracting 22444513 from its reverse (31544422), we obtain a palindrome (9099909).

The spelling of 22444513 in words is "twenty-two million, four hundred forty-four thousand, five hundred thirteen".