20344413 has 8 divisors (see below), whose sum is σ = 27859168. Its totient is φ = 13196304.

The previous prime is 20344403. The next prime is 20344417. The reversal of 20344413 is 31444302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20344413 - 2⁸ = 20344157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20344413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344417) 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, 91531 + ... + 91752.

It is an arithmetic number, because the mean of its divisors is an integer number (3482396).

Almost surely, 2^20344413 is an apocalyptic number.

It is an amenable number.

20344413 is a deficient number, since it is larger than the sum of its proper divisors (7514755).

20344413 is a wasteful number, since it uses less digits than its factorization.

20344413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183323.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20344413 is about 4510.4781343002. The cubic root of 20344413 is about 272.9910367517.

Adding to 20344413 its reverse (31444302), we get a palindrome (51788715).

The spelling of 20344413 in words is "twenty million, three hundred forty-four thousand, four hundred thirteen".