1329794100 has 108 divisors (see below), whose sum is σ = 4200356160. Its totient is φ = 351873600.

The previous prime is 1329794099. The next prime is 1329794129. The reversal of 1329794100 is 14979231.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 35 ways as a sum of consecutive naturals, for example, 112261 + ... + 123539.

Almost surely, 2^1329794100 is an apocalyptic number.

1329794100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1329794100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2100178080).

1329794100 is an abundant number, since it is smaller than the sum of its proper divisors (2870562060).

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

1329794100 is a wasteful number, since it uses less digits than its factorization.

1329794100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11430 (or 11420 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1329794100 is about 36466.3420156176. The cubic root of 1329794100 is about 1099.6676957660.

The spelling of 1329794100 in words is "one billion, three hundred twenty-nine million, seven hundred ninety-four thousand, one hundred".