208428898 has 16 divisors (see below), whose sum is σ = 343408320. Its totient is φ = 94436496.

The previous prime is 208428877. The next prime is 208428901. The reversal of 208428898 is 898824802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118365 + ... + 120112.

It is an arithmetic number, because the mean of its divisors is an integer number (21463020).

Almost surely, 2^208428898 is an apocalyptic number.

208428898 is a deficient number, since it is larger than the sum of its proper divisors (134979422).

208428898 is a wasteful number, since it uses less digits than its factorization.

208428898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238521.

The product of its (nonzero) digits is 589824, while the sum is 49.

The square root of 208428898 is about 14437.0668073539. The cubic root of 208428898 is about 592.9061804450.

The spelling of 208428898 in words is "two hundred eight million, four hundred twenty-eight thousand, eight hundred ninety-eight".