1288493299 has 6 divisors (see below), whose sum is σ = 1293041396. Its totient is φ = 1283949480.

The previous prime is 1288493293. The next prime is 1288493309. The reversal of 1288493299 is 9923948821.

It is not a de Polignac number, because 1288493299 - 2⁵ = 1288493267 is a prime.

It is a Duffinian number.

Its product of digits (2239488) is a multiple of the sum of its prime divisors (2304).

It is not an unprimeable number, because it can be changed into a prime (1288493293) 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 5 ways as a sum of consecutive naturals, for example, 652077 + ... + 654049.

Almost surely, 2^1288493299 is an apocalyptic number.

1288493299 is a deficient number, since it is larger than the sum of its proper divisors (4548097).

1288493299 is an frugal number, since it uses more digits than its factorization.

1288493299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277 (or 2304 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 55.

The square root of 1288493299 is about 35895.5888515567. The cubic root of 1288493299 is about 1088.1632503897.

The spelling of 1288493299 in words is "one billion, two hundred eighty-eight million, four hundred ninety-three thousand, two hundred ninety-nine".