408348449 has 16 divisors (see below), whose sum is σ = 449355600. Its totient is φ = 369352704.

The previous prime is 408348443. The next prime is 408348481. The reversal of 408348449 is 944843804.

It can be written as a sum of positive squares in 8 ways, for example, as 1600225 + 406748224 = 1265^2 + 20168^2 .

It is a cyclic number.

It is not a de Polignac number, because 408348449 - 2⁴ = 408348433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408348443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111089 + ... + 114705.

It is an arithmetic number, because the mean of its divisors is an integer number (28084725).

Almost surely, 2^408348449 is an apocalyptic number.

It is an amenable number.

408348449 is a deficient number, since it is larger than the sum of its proper divisors (41007151).

408348449 is a wasteful number, since it uses less digits than its factorization.

408348449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892.

The product of its (nonzero) digits is 442368, while the sum is 44.

The square root of 408348449 is about 20207.6334339279. The cubic root of 408348449 is about 741.8970373427.

The spelling of 408348449 in words is "four hundred eight million, three hundred forty-eight thousand, four hundred forty-nine".