1329880 has 16 divisors (see below), whose sum is σ = 2992320. Its totient is φ = 531936.

The previous prime is 1329871. The next prime is 1329899. The reversal of 1329880 is 889231.

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, 16584 + ... + 16663.

It is an arithmetic number, because the mean of its divisors is an integer number (187020).

2^1329880 is an apocalyptic number.

1329880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1329880 is an abundant number, since it is smaller than the sum of its proper divisors (1662440).

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

1329880 is a wasteful number, since it uses less digits than its factorization.

1329880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33258 (or 33254 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1329880 is about 1153.2042316953. The cubic root of 1329880 is about 109.9691373472.

It can be divided in two parts, 1329 and 880, that added together give a square (2209 = 47²).

The spelling of 1329880 in words is "one million, three hundred twenty-nine thousand, eight hundred eighty".