1288435349 has 8 divisors (see below), whose sum is σ = 1323722400. Its totient is φ = 1253172816.

The previous prime is 1288435339. The next prime is 1288435381. The reversal of 1288435349 is 9435348821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1288435349 - 2¹² = 1288431253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288435339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163502 + ... + 171200.

It is an arithmetic number, because the mean of its divisors is an integer number (165465300).

Almost surely, 2^1288435349 is an apocalyptic number.

It is an amenable number.

1288435349 is a deficient number, since it is larger than the sum of its proper divisors (35287051).

1288435349 is an equidigital number, since it uses as much as digits as its factorization.

1288435349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12259.

The product of its digits is 829440, while the sum is 47.

The square root of 1288435349 is about 35894.7816402329. The cubic root of 1288435349 is about 1088.1469367605.

The spelling of 1288435349 in words is "one billion, two hundred eighty-eight million, four hundred thirty-five thousand, three hundred forty-nine".