22641013 has 8 divisors (see below), whose sum is σ = 22892760. Its totient is φ = 22391040.

The previous prime is 22641011. The next prime is 22641049. The reversal of 22641013 is 31014622.

It can be written as a sum of positive squares in 4 ways, for example, as 16990884 + 5650129 = 4122^2 + 2377^2 .

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 22641013 - 2¹ = 22641011 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 (22641011) 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, 55153 + ... + 55561.

It is an arithmetic number, because the mean of its divisors is an integer number (2861595).

Almost surely, 2^22641013 is an apocalyptic number.

It is an amenable number.

22641013 is a deficient number, since it is larger than the sum of its proper divisors (251747).

22641013 is a wasteful number, since it uses less digits than its factorization.

22641013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 22641013 is about 4758.2573490722. The cubic root of 22641013 is about 282.8993511405.

Adding to 22641013 its reverse (31014622), we get a palindrome (53655635).

The spelling of 22641013 in words is "twenty-two million, six hundred forty-one thousand, thirteen".