1329944888 has 32 divisors (see below), whose sum is σ = 2581887360. Its totient is φ = 641571840.

The previous prime is 1329944887. The next prime is 1329944927. The reversal of 1329944888 is 8884499231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329944887) 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, 75620 + ... + 91532.

It is an arithmetic number, because the mean of its divisors is an integer number (80683980).

Almost surely, 2^1329944888 is an apocalyptic number.

It is an amenable number.

1329944888 is a deficient number, since it is larger than the sum of its proper divisors (1251942472).

1329944888 is a wasteful number, since it uses less digits than its factorization.

1329944888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16287 (or 16283 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 56.

The square root of 1329944888 is about 36468.4094525659. The cubic root of 1329944888 is about 1099.7092586980.

The spelling of 1329944888 in words is "one billion, three hundred twenty-nine million, nine hundred forty-four thousand, eight hundred eighty-eight".