1208430128 has 20 divisors (see below), whose sum is σ = 2353470648. Its totient is φ = 601082880.

The previous prime is 1208430121. The next prime is 1208430131. The reversal of 1208430128 is 8210348021.

It is a self number, because there is not a number n which added to its sum of digits gives 1208430128.

It is not an unprimeable number, because it can be changed into a prime (1208430121) 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, 192578 + ... + 198753.

Almost surely, 2^1208430128 is an apocalyptic number.

It is an amenable number.

1208430128 is a deficient number, since it is larger than the sum of its proper divisors (1145040520).

1208430128 is a wasteful number, since it uses less digits than its factorization.

1208430128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391532 (or 391526 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 1208430128 is about 34762.4816145223. The cubic root of 1208430128 is about 1065.1411945901.

Adding to 1208430128 its reverse (8210348021), we get a palindrome (9418778149).

The spelling of 1208430128 in words is "one billion, two hundred eight million, four hundred thirty thousand, one hundred twenty-eight".