13408213 has 32 divisors (see below), whose sum is σ = 17561600. Its totient is φ = 10160640.

The previous prime is 13408211. The next prime is 13408229. The reversal of 13408213 is 31280431.

It is not a de Polignac number, because 13408213 - 2¹ = 13408211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13408211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138181 + ... + 138277.

It is an arithmetic number, because the mean of its divisors is an integer number (548800).

Almost surely, 2^13408213 is an apocalyptic number.

13408213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13408213 is a deficient number, since it is larger than the sum of its proper divisors (4153387).

13408213 is an equidigital number, since it uses as much as digits as its factorization.

13408213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 13408213 is about 3661.7226820173. The cubic root of 13408213 is about 237.5692902167.

Adding to 13408213 its reverse (31280431), we get a palindrome (44688644).

The spelling of 13408213 in words is "thirteen million, four hundred eight thousand, two hundred thirteen".