1288334896 has 20 divisors (see below), whose sum is σ = 2503312000. Its totient is φ = 642318912.

The previous prime is 1288334837. The next prime is 1288334909. The reversal of 1288334896 is 6984338821.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109776 + ... + 120943.

It is an arithmetic number, because the mean of its divisors is an integer number (125165600).

Almost surely, 2^1288334896 is an apocalyptic number.

1288334896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1288334896 is a deficient number, since it is larger than the sum of its proper divisors (1214977104).

1288334896 is a wasteful number, since it uses less digits than its factorization.

1288334896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231076 (or 231070 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The square root of 1288334896 is about 35893.3823427105. The cubic root of 1288334896 is about 1088.1186568613.

The spelling of 1288334896 in words is "one billion, two hundred eighty-eight million, three hundred thirty-four thousand, eight hundred ninety-six".