1200001996 has 12 divisors (see below), whose sum is σ = 2102315040. Its totient is φ = 599340560.

The previous prime is 1200001987. The next prime is 1200002017. The reversal of 1200001996 is 6991000021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161011 + ... + 168298.

It is an arithmetic number, because the mean of its divisors is an integer number (175192920).

Almost surely, 2^1200001996 is an apocalyptic number.

It is an amenable number.

1200001996 is a deficient number, since it is larger than the sum of its proper divisors (902313044).

1200001996 is a wasteful number, since it uses less digits than its factorization.

1200001996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330224 (or 330222 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1200001996 is about 34641.0449611440. The cubic root of 1200001996 is about 1062.6591583674.

The spelling of 1200001996 in words is "one billion, two hundred million, one thousand, nine hundred ninety-six".