32445128 has 16 divisors (see below), whose sum is σ = 61519500. Its totient is φ = 16039936.

The previous prime is 32445121. The next prime is 32445131. The reversal of 32445128 is 82154423.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 32058244 + 386884 = 5662^2 + 622^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32445128.

It is not an unprimeable number, because it can be changed into a prime (32445121) 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 in 3 ways as a sum of consecutive naturals, for example, 22073 + ... + 23496.

Almost surely, 2^32445128 is an apocalyptic number.

It is an amenable number.

32445128 is a deficient number, since it is larger than the sum of its proper divisors (29074372).

32445128 is a wasteful number, since it uses less digits than its factorization.

32445128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45664 (or 45660 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 32445128 is about 5696.0624996571. The cubic root of 32445128 is about 318.9455133729.

The spelling of 32445128 in words is "thirty-two million, four hundred forty-five thousand, one hundred twenty-eight".