1299206216 has 32 divisors (see below), whose sum is σ = 3037106880. Its totient is φ = 506184000.

The previous prime is 1299206203. The next prime is 1299206219. The reversal of 1299206216 is 6126029921.

It is a self number, because there is not a number n which added to its sum of digits gives 1299206216.

It is not an unprimeable number, because it can be changed into a prime (1299206219) 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 7 ways as a sum of consecutive naturals, for example, 1053935 + ... + 1055166.

It is an arithmetic number, because the mean of its divisors is an integer number (94909590).

Almost surely, 2^1299206216 is an apocalyptic number.

It is an amenable number.

1299206216 is an abundant number, since it is smaller than the sum of its proper divisors (1737900664).

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

1299206216 is a wasteful number, since it uses less digits than its factorization.

1299206216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109125 (or 2109121 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1299206216 is about 36044.5032702630. The cubic root of 1299206216 is about 1091.1707018826.

The spelling of 1299206216 in words is "one billion, two hundred ninety-nine million, two hundred six thousand, two hundred sixteen".