1329670 has 8 divisors (see below), whose sum is σ = 2393424. Its totient is φ = 531864.

The previous prime is 1329661. The next prime is 1329673. The reversal of 1329670 is 769231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66474 + ... + 66493.

It is an arithmetic number, because the mean of its divisors is an integer number (299178).

2^1329670 is an apocalyptic number.

1329670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1329670 is a deficient number, since it is larger than the sum of its proper divisors (1063754).

1329670 is a wasteful number, since it uses less digits than its factorization.

1329670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132974.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1329670 is about 1153.1131774462. The cubic root of 1329670 is about 109.9633486709.

It can be divided in two parts, 13296 and 70, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 1329670 in words is "one million, three hundred twenty-nine thousand, six hundred seventy".