408239532901 has 2 divisors, whose sum is σ = 408239532902. Its totient is φ = 408239532900.

The previous prime is 408239532871. The next prime is 408239532949. The reversal of 408239532901 is 109235932804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303409282276 + 104830250625 = 550826^2 + 323775^2 .

It is a cyclic number.

It is not a de Polignac number, because 408239532901 - 2⁷ = 408239532773 is a prime.

It is a super-2 number, since 2×408239532901² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408239533901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204119766450 + 204119766451.

It is an arithmetic number, because the mean of its divisors is an integer number (204119766451).

Almost surely, 2^408239532901 is an apocalyptic number.

It is an amenable number.

408239532901 is a deficient number, since it is larger than the sum of its proper divisors (1).

408239532901 is an equidigital number, since it uses as much as digits as its factorization.

408239532901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 408239532901 in words is "four hundred eight billion, two hundred thirty-nine million, five hundred thirty-two thousand, nine hundred one".