208828156 has 12 divisors (see below), whose sum is σ = 367638768. Its totient is φ = 103788512.

The previous prime is 208828133. The next prime is 208828157. The reversal of 208828156 is 651828802.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208828157) 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 3 ways as a sum of consecutive naturals, for example, 155641 + ... + 156976.

It is an arithmetic number, because the mean of its divisors is an integer number (30636564).

Almost surely, 2^208828156 is an apocalyptic number.

It is an amenable number.

208828156 is a deficient number, since it is larger than the sum of its proper divisors (158810612).

208828156 is a wasteful number, since it uses less digits than its factorization.

208828156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312788 (or 312786 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 208828156 is about 14450.8877235968. The cubic root of 208828156 is about 593.2845213671.

The spelling of 208828156 in words is "two hundred eight million, eight hundred twenty-eight thousand, one hundred fifty-six".