1288330616 has 16 divisors (see below), whose sum is σ = 2416025040. Its totient is φ = 644057280.

The previous prime is 1288330609. The next prime is 1288330619. The reversal of 1288330616 is 6160338821.

It is a super-2 number, since 2×1288330616² = 3319591552245878912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1288330616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288330619) 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, 62036 + ... + 80156.

It is an arithmetic number, because the mean of its divisors is an integer number (151001565).

Almost surely, 2^1288330616 is an apocalyptic number.

It is an amenable number.

1288330616 is a deficient number, since it is larger than the sum of its proper divisors (1127694424).

1288330616 is a wasteful number, since it uses less digits than its factorization.

1288330616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27014 (or 27010 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1288330616 is about 35893.3227216428. The cubic root of 1288330616 is about 1088.1174519073.

The spelling of 1288330616 in words is "one billion, two hundred eighty-eight million, three hundred thirty thousand, six hundred sixteen".