208028249 has 8 divisors (see below), whose sum is σ = 244396992. Its totient is φ = 174569040.

The previous prime is 208028243. The next prime is 208028267. The reversal of 208028249 is 942820802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208028249 - 2⁸ = 208027993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208028243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727229 + ... + 727514.

It is an arithmetic number, because the mean of its divisors is an integer number (30549624).

Almost surely, 2^208028249 is an apocalyptic number.

It is an amenable number.

208028249 is a deficient number, since it is larger than the sum of its proper divisors (36368743).

208028249 is a wasteful number, since it uses less digits than its factorization.

208028249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454767.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 208028249 is about 14423.1844264712. The cubic root of 208028249 is about 592.5260354004.

The spelling of 208028249 in words is "two hundred eight million, twenty-eight thousand, two hundred forty-nine".