408271249 has 2 divisors, whose sum is σ = 408271250. Its totient is φ = 408271248.

The previous prime is 408271223. The next prime is 408271379. The reversal of 408271249 is 942172804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303003649 + 105267600 = 17407^2 + 10260^2 .

It is a cyclic number.

It is not a de Polignac number, because 408271249 - 2²³ = 399882641 is a prime.

It is not a weakly prime, because it can be changed into another prime (408271219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204135624 + 204135625.

It is an arithmetic number, because the mean of its divisors is an integer number (204135625).

Almost surely, 2^408271249 is an apocalyptic number.

It is an amenable number.

408271249 is a deficient number, since it is larger than the sum of its proper divisors (1).

408271249 is an equidigital number, since it uses as much as digits as its factorization.

408271249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 408271249 is about 20205.7231743880. The cubic root of 408271249 is about 741.8502814727.

The spelling of 408271249 in words is "four hundred eight million, two hundred seventy-one thousand, two hundred forty-nine".