1200276872 has 16 divisors (see below), whose sum is σ = 2261946060. Its totient is φ = 597091264.

The previous prime is 1200276871. The next prime is 1200276901. The reversal of 1200276872 is 2786720021.

It can be written as a sum of positive squares in 2 ways, for example, as 886491076 + 313785796 = 29774^2 + 17714^2 .

It is not an unprimeable number, because it can be changed into a prime (1200276871) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 379223 + ... + 382374.

Almost surely, 2^1200276872 is an apocalyptic number.

It is an amenable number.

1200276872 is a deficient number, since it is larger than the sum of its proper divisors (1061669188).

1200276872 is a wasteful number, since it uses less digits than its factorization.

1200276872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761800 (or 761796 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 1200276872 is about 34645.0122239840. The cubic root of 1200276872 is about 1062.7402907876.

Adding to 1200276872 its reverse (2786720021), we get a palindrome (3986996893).

The spelling of 1200276872 in words is "one billion, two hundred million, two hundred seventy-six thousand, eight hundred seventy-two".