32644328 has 8 divisors (see below), whose sum is σ = 61208130. Its totient is φ = 16322160.

The previous prime is 32644327. The next prime is 32644331. The reversal of 32644328 is 82344623.

It can be written as a sum of positive squares in only one way, i.e., 20268004 + 12376324 = 4502^2 + 3518^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 32644294 and 32644303.

It is not an unprimeable number, because it can be changed into a prime (32644321) 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, 2040263 + ... + 2040278.

Almost surely, 2^32644328 is an apocalyptic number.

It is an amenable number.

32644328 is a deficient number, since it is larger than the sum of its proper divisors (28563802).

32644328 is a wasteful number, since it uses less digits than its factorization.

32644328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080547 (or 4080543 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 32644328 is about 5713.5215060416. The cubic root of 32644328 is about 319.5969143443.

The spelling of 32644328 in words is "thirty-two million, six hundred forty-four thousand, three hundred twenty-eight".