28735244 has 6 divisors (see below), whose sum is σ = 50286684. Its totient is φ = 14367620.

The previous prime is 28735241. The next prime is 28735261. The reversal of 28735244 is 44253782.

It is not an unprimeable number, because it can be changed into a prime (28735241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3591902 + ... + 3591909.

It is an arithmetic number, because the mean of its divisors is an integer number (8381114).

Almost surely, 2^28735244 is an apocalyptic number.

It is an amenable number.

28735244 is a deficient number, since it is larger than the sum of its proper divisors (21551440).

28735244 is a wasteful number, since it uses less digits than its factorization.

28735244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7183815 (or 7183813 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 28735244 is about 5360.5264666822. The cubic root of 28735244 is about 306.2938638268.

The spelling of 28735244 in words is "twenty-eight million, seven hundred thirty-five thousand, two hundred forty-four".