408322249 has 2 divisors, whose sum is σ = 408322250. Its totient is φ = 408322248.

The previous prime is 408322247. The next prime is 408322259. The reversal of 408322249 is 942223804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377719225 + 30603024 = 19435^2 + 5532^2 .

It is a cyclic number.

It is not a de Polignac number, because 408322249 - 2¹ = 408322247 is a prime.

Together with 408322247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (408322247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204161124 + 204161125.

It is an arithmetic number, because the mean of its divisors is an integer number (204161125).

Almost surely, 2^408322249 is an apocalyptic number.

It is an amenable number.

408322249 is a deficient number, since it is larger than the sum of its proper divisors (1).

408322249 is an equidigital number, since it uses as much as digits as its factorization.

408322249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 408322249 is about 20206.9851536542. The cubic root of 408322249 is about 741.8811700785.

The spelling of 408322249 in words is "four hundred eight million, three hundred twenty-two thousand, two hundred forty-nine".