208456228 has 6 divisors (see below), whose sum is σ = 364798406. Its totient is φ = 104228112.

The previous prime is 208456219. The next prime is 208456289. The reversal of 208456228 is 822654802.

It can be written as a sum of positive squares in only one way, i.e., 199883044 + 8573184 = 14138^2 + 2928^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26057025 + ... + 26057032.

Almost surely, 2^208456228 is an apocalyptic number.

It is an amenable number.

208456228 is a deficient number, since it is larger than the sum of its proper divisors (156342178).

208456228 is a wasteful number, since it uses less digits than its factorization.

208456228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52114061 (or 52114059 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 208456228 is about 14438.0132982346. The cubic root of 208456228 is about 592.9320940265.

The spelling of 208456228 in words is "two hundred eight million, four hundred fifty-six thousand, two hundred twenty-eight".