2169075328 has 64 divisors (see below), whose sum is σ = 4957297920. Its totient is φ = 926069760.

The previous prime is 2169075299. The next prime is 2169075343. The reversal of 2169075328 is 8235709612.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 238350 + ... + 247282.

It is an arithmetic number, because the mean of its divisors is an integer number (77457780).

Almost surely, 2^2169075328 is an apocalyptic number.

2169075328 is a gapful number since it is divisible by the number (28) 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 2169075328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2478648960).

2169075328 is an abundant number, since it is smaller than the sum of its proper divisors (2788222592).

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

2169075328 is an equidigital number, since it uses as much as digits as its factorization.

2169075328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9225 (or 9213 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 2169075328 is about 46573.3327989312. The cubic root of 2169075328 is about 1294.4686734712.

The spelling of 2169075328 in words is "two billion, one hundred sixty-nine million, seventy-five thousand, three hundred twenty-eight".