22640341 has 4 divisors (see below), whose sum is σ = 22840812. Its totient is φ = 22439872.

The previous prime is 22640339. The next prime is 22640347. The reversal of 22640341 is 14304622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125316 + 22515025 = 354^2 + 4745^2 .

It is a cyclic number.

It is not a de Polignac number, because 22640341 - 2¹ = 22640339 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640347) 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, 100066 + ... + 100291.

It is an arithmetic number, because the mean of its divisors is an integer number (5710203).

Almost surely, 2^22640341 is an apocalyptic number.

It is an amenable number.

22640341 is a deficient number, since it is larger than the sum of its proper divisors (200471).

22640341 is a wasteful number, since it uses less digits than its factorization.

22640341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200470.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 22640341 is about 4758.1867344609. The cubic root of 22640341 is about 282.8965522339.

Adding to 22640341 its reverse (14304622), we get a palindrome (36944963).

The spelling of 22640341 in words is "twenty-two million, six hundred forty thousand, three hundred forty-one".