208860228 has 24 divisors (see below), whose sum is σ = 541489760. Its totient is φ = 69620040.

The previous prime is 208860209. The next prime is 208860247. The reversal of 208860228 is 822068802.

208860228 is a `hidden beast` number, since 20 + 8 + 8 + 602 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (208860209) and next prime (208860247).

It is a super-3 number, since 3×208860228³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 208860192 and 208860201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966838 + ... + 967053.

Almost surely, 2^208860228 is an apocalyptic number.

It is an amenable number.

208860228 is an abundant number, since it is smaller than the sum of its proper divisors (332629532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208860228 is a wasteful number, since it uses less digits than its factorization.

208860228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933904 (or 1933896 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 208860228 is about 14451.9973706059. The cubic root of 208860228 is about 593.3148921873.

The spelling of 208860228 in words is "two hundred eight million, eight hundred sixty thousand, two hundred twenty-eight".