408202013 has 2 divisors, whose sum is σ = 408202014. Its totient is φ = 408202012.

The previous prime is 408202007. The next prime is 408202073. The reversal of 408202013 is 310202804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408161209 + 40804 = 20203^2 + 202^2 .

It is a cyclic number.

It is not a de Polignac number, because 408202013 - 2⁶ = 408201949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408202073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204101006 + 204101007.

It is an arithmetic number, because the mean of its divisors is an integer number (204101007).

Almost surely, 2^408202013 is an apocalyptic number.

It is an amenable number.

408202013 is a deficient number, since it is larger than the sum of its proper divisors (1).

408202013 is an equidigital number, since it uses as much as digits as its factorization.

408202013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 408202013 is about 20204.0098247848. The cubic root of 408202013 is about 741.8083439537.

Adding to 408202013 its reverse (310202804), we get a palindrome (718404817).

The spelling of 408202013 in words is "four hundred eight million, two hundred two thousand, thirteen".