1288780383 has 16 divisors (see below), whose sum is σ = 1909961856. Its totient is φ = 766340640.

The previous prime is 1288780369. The next prime is 1288780397. The reversal of 1288780383 is 3830878821.

It is an interprime number because it is at equal distance from previous prime (1288780369) and next prime (1288780397).

It is not a de Polignac number, because 1288780383 - 2¹² = 1288776287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288780313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366685 + ... + 370182.

It is an arithmetic number, because the mean of its divisors is an integer number (119372616).

Almost surely, 2^1288780383 is an apocalyptic number.

1288780383 is a deficient number, since it is larger than the sum of its proper divisors (621181473).

1288780383 is a wasteful number, since it uses less digits than its factorization.

1288780383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736934.

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 1288780383 is about 35899.5875045940. The cubic root of 1288780383 is about 1088.2440608113.

The spelling of 1288780383 in words is "one billion, two hundred eighty-eight million, seven hundred eighty thousand, three hundred eighty-three".