1328023172 has 12 divisors (see below), whose sum is σ = 2656046400. Its totient is φ = 569152776.

The previous prime is 1328023171. The next prime is 1328023199. The reversal of 1328023172 is 2713208231.

1328023172 is an admirable number.

It is a super-3 number, since 3×1328023172³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1328023171) 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 3 ways as a sum of consecutive naturals, for example, 23714672 + ... + 23714727.

It is an arithmetic number, because the mean of its divisors is an integer number (221337200).

Almost surely, 2^1328023172 is an apocalyptic number.

It is an amenable number.

1328023172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1328023172 is a wasteful number, since it uses less digits than its factorization.

1328023172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47429410 (or 47429408 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1328023172 is about 36442.0522473694. The cubic root of 1328023172 is about 1099.1793250629.

The spelling of 1328023172 in words is "one billion, three hundred twenty-eight million, twenty-three thousand, one hundred seventy-two".