1329648 has 20 divisors (see below), whose sum is σ = 3435048. Its totient is φ = 443200.

The previous prime is 1329637. The next prime is 1329661. The reversal of 1329648 is 8469231.

It is a congruent number.

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, 13803 + ... + 13898.

2^1329648 is an apocalyptic number.

It is an amenable number.

1329648 is an abundant number, since it is smaller than the sum of its proper divisors (2105400).

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

1329648 is a wasteful number, since it uses less digits than its factorization.

1329648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27712 (or 27706 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 1329648 is about 1153.1036380135. The cubic root of 1329648 is about 109.9627422029.

The spelling of 1329648 in words is "one million, three hundred twenty-nine thousand, six hundred forty-eight".