20410 has 16 divisors (see below), whose sum is σ = 39816. Its totient is φ = 7488.

The previous prime is 20407. The next prime is 20411. The reversal of 20410 is 1402.

It can be written as a sum of positive squares in 4 ways, for example, as 10609 + 9801 = 103^2 + 99^2 .

It is a plaindrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 20393 and 20402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411) 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, 52 + ... + 208.

2²⁰⁴¹⁰ is an apocalyptic number.

20410 is a deficient number, since it is larger than the sum of its proper divisors (19406).

20410 is a wasteful number, since it uses less digits than its factorization.

20410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 20410 is about 142.8635712839. The cubic root of 20410 is about 27.3284081284.

Adding to 20410 its reverse (1402), we get a palindrome (21812).

The spelling of 20410 in words is "twenty thousand, four hundred ten", and thus it is an iban number.