28445038 has 8 divisors (see below), whose sum is σ = 43045488. Its totient is φ = 14096544.

The previous prime is 28445009. The next prime is 28445041. The reversal of 28445038 is 83054482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28444994 and 28445012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62706 + ... + 63157.

It is an arithmetic number, because the mean of its divisors is an integer number (5380686).

Almost surely, 2^28445038 is an apocalyptic number.

28445038 is a deficient number, since it is larger than the sum of its proper divisors (14600450).

28445038 is a wasteful number, since it uses less digits than its factorization.

28445038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125978.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 28445038 is about 5333.3889788764. The cubic root of 28445038 is about 305.2592546187.

The spelling of 28445038 in words is "twenty-eight million, four hundred forty-five thousand, thirty-eight".