1329916 has 12 divisors (see below), whose sum is σ = 2659888. Its totient is φ = 569952.

The previous prime is 1329907. The next prime is 1329941. The reversal of 1329916 is 6199231.

1329916 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23721 + ... + 23776.

2^1329916 is an apocalyptic number.

It is an amenable number.

1329916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1329916 is a wasteful number, since it uses less digits than its factorization.

1329916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47508 (or 47506 counting only the distinct ones).

The product of its digits is 2916, while the sum is 31.

The square root of 1329916 is about 1153.2198402733. The cubic root of 1329916 is about 109.9701296305.

It can be divided in two parts, 13 and 29916, that added together give a square (29929 = 173²).

The spelling of 1329916 in words is "one million, three hundred twenty-nine thousand, nine hundred sixteen".