1329030320 has 20 divisors (see below), whose sum is σ = 3089995680. Its totient is φ = 531612096.

The previous prime is 1329030253. The next prime is 1329030331. The reversal of 1329030320 is 230309231.

It is a tau number, because it is divible by the number of its divisors (20).

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, 8306360 + ... + 8306519.

It is an arithmetic number, because the mean of its divisors is an integer number (154499784).

Almost surely, 2^1329030320 is an apocalyptic number.

1329030320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1329030320 is an abundant number, since it is smaller than the sum of its proper divisors (1760965360).

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

1329030320 is a wasteful number, since it uses less digits than its factorization.

1329030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16612892 (or 16612886 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 1329030320 is about 36455.8681147494. The cubic root of 1329030320 is about 1099.4571205483.

Adding to 1329030320 its reverse (230309231), we get a palindrome (1559339551).

The spelling of 1329030320 in words is "one billion, three hundred twenty-nine million, thirty thousand, three hundred twenty".