1288297304 has 16 divisors (see below), whose sum is σ = 2760637200. Its totient is φ = 552127392.

The previous prime is 1288297303. The next prime is 1288297313. The reversal of 1288297304 is 4037928821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288297301) 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, 11502599 + ... + 11502710.

It is an arithmetic number, because the mean of its divisors is an integer number (172539825).

Almost surely, 2^1288297304 is an apocalyptic number.

1288297304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1288297304 is an abundant number, since it is smaller than the sum of its proper divisors (1472339896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1288297304 is a wasteful number, since it uses less digits than its factorization.

1288297304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23005322 (or 23005318 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 1288297304 is about 35892.8586769012. The cubic root of 1288297304 is about 1088.1080734448.

The spelling of 1288297304 in words is "one billion, two hundred eighty-eight million, two hundred ninety-seven thousand, three hundred four".