1229788208 has 20 divisors (see below), whose sum is σ = 2599325448. Its totient is φ = 558994560.

The previous prime is 1229788207. The next prime is 1229788253. The reversal of 1229788208 is 8028879221.

It is not an unprimeable number, because it can be changed into a prime (1229788207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3493541 + ... + 3493892.

Almost surely, 2^1229788208 is an apocalyptic number.

It is an amenable number.

1229788208 is an abundant number, since it is smaller than the sum of its proper divisors (1369537240).

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

1229788208 is a wasteful number, since it uses less digits than its factorization.

1229788208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6987452 (or 6987446 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 1229788208 is about 35068.3362593665. The cubic root of 1229788208 is about 1071.3797694970.

The spelling of 1229788208 in words is "one billion, two hundred twenty-nine million, seven hundred eighty-eight thousand, two hundred eight".