208403049 has 16 divisors (see below), whose sum is σ = 292253184. Its totient is φ = 131913600.

The previous prime is 208403047. The next prime is 208403059. The reversal of 208403049 is 940304802.

It is a happy number.

It is not a de Polignac number, because 208403049 - 2¹ = 208403047 is a prime.

It is a super-3 number, since 3×208403049³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (208403047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16212 + ... + 26069.

It is an arithmetic number, because the mean of its divisors is an integer number (18265824).

Almost surely, 2^208403049 is an apocalyptic number.

It is an amenable number.

208403049 is a deficient number, since it is larger than the sum of its proper divisors (83850135).

208403049 is a wasteful number, since it uses less digits than its factorization.

208403049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42368.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 208403049 is about 14436.1715492716. The cubic root of 208403049 is about 592.8816690239.

The spelling of 208403049 in words is "two hundred eight million, four hundred three thousand, forty-nine".