28965432 has 32 divisors (see below), whose sum is σ = 74912400. Its totient is φ = 9321984.

The previous prime is 28965407. The next prime is 28965437. The reversal of 28965432 is 23456982.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28965437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20113 + ... + 21504.

Almost surely, 2^28965432 is an apocalyptic number.

It is an amenable number.

28965432 is an abundant number, since it is smaller than the sum of its proper divisors (45946968).

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

28965432 is a wasteful number, since it uses less digits than its factorization.

28965432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41655 (or 41651 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 28965432 is about 5381.9542918906. The cubic root of 28965432 is about 307.1095606441.

The spelling of 28965432 in words is "twenty-eight million, nine hundred sixty-five thousand, four hundred thirty-two".