20332328 has 8 divisors (see below), whose sum is σ = 38123130. Its totient is φ = 10166160.

The previous prime is 20332327. The next prime is 20332331. The reversal of 20332328 is 82323302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19518724 + 813604 = 4418^2 + 902^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (20332327) by changing a digit.

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 as a sum of consecutive naturals, namely, 1270763 + ... + 1270778.

Almost surely, 2^20332328 is an apocalyptic number.

It is an amenable number.

20332328 is a deficient number, since it is larger than the sum of its proper divisors (17790802).

20332328 is a wasteful number, since it uses less digits than its factorization.

20332328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541547 (or 2541543 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 20332328 is about 4509.1382768773. The cubic root of 20332328 is about 272.9369719471.

The spelling of 20332328 in words is "twenty million, three hundred thirty-two thousand, three hundred twenty-eight".