32465728 has 28 divisors (see below), whose sum is σ = 65316100. Its totient is φ = 16008192.

The previous prime is 32465723. The next prime is 32465729. The reversal of 32465728 is 82756423.

It can be written as a sum of positive squares in 2 ways, for example, as 23892544 + 8573184 = 4888^2 + 2928^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32465723) 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, 1198 + ... + 8146.

Almost surely, 2^32465728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32465728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32658050).

32465728 is an abundant number, since it is smaller than the sum of its proper divisors (32850372).

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

32465728 is an equidigital number, since it uses as much as digits as its factorization.

32465728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034 (or 7024 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 32465728 is about 5697.8704793984. The cubic root of 32465728 is about 319.0130005217.

The spelling of 32465728 in words is "thirty-two million, four hundred sixty-five thousand, seven hundred twenty-eight".