1286326036 has 12 divisors (see below), whose sum is σ = 2251386900. Its totient is φ = 643072640.

The previous prime is 1286326031. The next prime is 1286326039. The reversal of 1286326036 is 6306236821.

It can be written as a sum of positive squares in 2 ways, for example, as 367872400 + 918453636 = 19180^2 + 30306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1286325986 and 1286326004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286326031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17226 + ... + 53566.

It is an arithmetic number, because the mean of its divisors is an integer number (187615575).

Almost surely, 2^1286326036 is an apocalyptic number.

It is an amenable number.

1286326036 is a deficient number, since it is larger than the sum of its proper divisors (965060864).

1286326036 is a wasteful number, since it uses less digits than its factorization.

1286326036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45194 (or 45192 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 1286326036 is about 35865.3877157351. The cubic root of 1286326036 is about 1087.5528062789.

The spelling of 1286326036 in words is "one billion, two hundred eighty-six million, three hundred twenty-six thousand, thirty-six".