1283773268 has 12 divisors (see below), whose sum is σ = 2249673300. Its totient is φ = 641009472.

The previous prime is 1283773259. The next prime is 1283773273. The reversal of 1283773268 is 8623773821.

It can be written as a sum of positive squares in 2 ways, for example, as 998433604 + 285339664 = 31598^2 + 16892^2 .

It is a congruent number.

It is an unprimeable number.

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, 215993 + ... + 221856.

It is an arithmetic number, because the mean of its divisors is an integer number (187472775).

Almost surely, 2^1283773268 is an apocalyptic number.

It is an amenable number.

1283773268 is a deficient number, since it is larger than the sum of its proper divisors (965900032).

1283773268 is a wasteful number, since it uses less digits than its factorization.

1283773268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438586 (or 438584 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 1283773268 is about 35829.7818581135. The cubic root of 1283773268 is about 1086.8328984449.

The spelling of 1283773268 in words is "one billion, two hundred eighty-three million, seven hundred seventy-three thousand, two hundred sixty-eight".