1329630 has 64 divisors (see below), whose sum is σ = 3483648. Its totient is φ = 323840.

The previous prime is 1329623. The next prime is 1329631. The reversal of 1329630 is 369231.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1329630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1329631) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 28267 + ... + 28313.

It is an arithmetic number, because the mean of its divisors is an integer number (54432).

2^1329630 is an apocalyptic number.

1329630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1329630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1741824).

1329630 is an abundant number, since it is smaller than the sum of its proper divisors (2154018).

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

1329630 is a wasteful number, since it uses less digits than its factorization.

1329630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 1329630 is about 1153.0958329645. The cubic root of 1329630 is about 109.9622459968.

The spelling of 1329630 in words is "one million, three hundred twenty-nine thousand, six hundred thirty".