1329090630 has 64 divisors (see below), whose sum is σ = 3673410048. Its totient is φ = 301466880.

The previous prime is 1329090629. The next prime is 1329090671. The reversal of 1329090630 is 360909231.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1329090591 and 1329090600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3354 + ... + 51666.

It is an arithmetic number, because the mean of its divisors is an integer number (57397032).

Almost surely, 2^1329090630 is an apocalyptic number.

1329090630 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 1329090630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1836705024).

1329090630 is an abundant number, since it is smaller than the sum of its proper divisors (2344319418).

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

1329090630 is a wasteful number, since it uses less digits than its factorization.

1329090630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48461.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 1329090630 is about 36456.6952698678. The cubic root of 1329090630 is about 1099.4737510332.

Adding to 1329090630 its reverse (360909231), we get a palindrome (1689999861).

The spelling of 1329090630 in words is "one billion, three hundred twenty-nine million, ninety thousand, six hundred thirty".