20410013 has 8 divisors (see below), whose sum is σ = 23273208. Its totient is φ = 17731584.

The previous prime is 20410007. The next prime is 20410031. The reversal of 20410013 is 31001402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3286969 + 17123044 = 1813^2 + 4138^2 .

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

It is not a de Polignac number, because 20410013 - 2⁸ = 20409757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20409976 and 20410003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410063) 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, 45956 + ... + 46397.

It is an arithmetic number, because the mean of its divisors is an integer number (2909151).

Almost surely, 2^20410013 is an apocalyptic number.

It is an amenable number.

20410013 is a deficient number, since it is larger than the sum of its proper divisors (2863195).

20410013 is a wasteful number, since it uses less digits than its factorization.

20410013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92383.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20410013 is about 4517.7442380020. The cubic root of 20410013 is about 273.2841393058.

Adding to 20410013 its reverse (31001402), we get a palindrome (51411415).

The spelling of 20410013 in words is "twenty million, four hundred ten thousand, thirteen".