22432013 has 4 divisors (see below), whose sum is σ = 22444800. Its totient is φ = 22419228.

The previous prime is 22432001. The next prime is 22432021. The reversal of 22432013 is 31023422.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31023422 = 2 ⋅15511711.

It is a cyclic number.

It is not a de Polignac number, because 22432013 - 2⁸ = 22431757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22431982 and 22432000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22432063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3245 + ... + 7442.

It is an arithmetic number, because the mean of its divisors is an integer number (5611200).

Almost surely, 2^22432013 is an apocalyptic number.

It is an amenable number.

22432013 is a deficient number, since it is larger than the sum of its proper divisors (12787).

22432013 is a wasteful number, since it uses less digits than its factorization.

22432013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12786.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22432013 is about 4736.2446093926. The cubic root of 22432013 is about 282.0261741545.

Adding to 22432013 its reverse (31023422), we get a palindrome (53455435).

The spelling of 22432013 in words is "twenty-two million, four hundred thirty-two thousand, thirteen".