28244032 has 28 divisors (see below), whose sum is σ = 58999120. Its totient is φ = 13378176.

The previous prime is 28244017. The next prime is 28244033. The reversal of 28244032 is 23044282.

It is a junction number, because it is equal to n+sod(n) for n = 28243988 and 28244006.

It is not an unprimeable number, because it can be changed into a prime (28244033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10398 + ... + 12829.

Almost surely, 2^28244032 is an apocalyptic number.

It is an amenable number.

28244032 is an abundant number, since it is smaller than the sum of its proper divisors (30755088).

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

28244032 is a wasteful number, since it uses less digits than its factorization.

28244032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23258 (or 23248 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 28244032 is about 5314.5114544989. The cubic root of 28244032 is about 304.5385191640.

The spelling of 28244032 in words is "twenty-eight million, two hundred forty-four thousand, thirty-two".