22240613 has 4 divisors (see below), whose sum is σ = 22357248. Its totient is φ = 22123980.

The previous prime is 22240601. The next prime is 22240637. The reversal of 22240613 is 31604222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22240613 - 2¹⁴ = 22224229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22240643) 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, 58031 + ... + 58412.

It is an arithmetic number, because the mean of its divisors is an integer number (5589312).

Almost surely, 2^22240613 is an apocalyptic number.

It is an amenable number.

22240613 is a deficient number, since it is larger than the sum of its proper divisors (116635).

22240613 is a wasteful number, since it uses less digits than its factorization.

22240613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116634.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 22240613 is about 4715.9954410495. The cubic root of 22240613 is about 281.2217572957.

Adding to 22240613 its reverse (31604222), we get a palindrome (53844835).

The spelling of 22240613 in words is "twenty-two million, two hundred forty thousand, six hundred thirteen".