208449349 has 2 divisors, whose sum is σ = 208449350. Its totient is φ = 208449348.

The previous prime is 208449313. The next prime is 208449389. The reversal of 208449349 is 943944802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157326849 + 51122500 = 12543^2 + 7150^2 .

It is a cyclic number.

It is not a de Polignac number, because 208449349 - 2¹¹ = 208447301 is a prime.

It is a super-2 number, since 2×208449349² = 86902262197047602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208449389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104224674 + 104224675.

It is an arithmetic number, because the mean of its divisors is an integer number (104224675).

Almost surely, 2^208449349 is an apocalyptic number.

It is an amenable number.

208449349 is a deficient number, since it is larger than the sum of its proper divisors (1).

208449349 is an equidigital number, since it uses as much as digits as its factorization.

208449349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 208449349 is about 14437.7750709727. The cubic root of 208449349 is about 592.9255717543.

The spelling of 208449349 in words is "two hundred eight million, four hundred forty-nine thousand, three hundred forty-nine".