28310272 has 18 divisors (see below), whose sum is σ = 56510468. Its totient is φ = 14155008.

The previous prime is 28310257. The next prime is 28310273. The reversal of 28310272 is 27201382.

It is not an unprimeable number, because it can be changed into a prime (28310273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55038 + ... + 55549.

Almost surely, 2^28310272 is an apocalyptic number.

It is an amenable number.

28310272 is a deficient number, since it is larger than the sum of its proper divisors (28200196).

28310272 is an equidigital number, since it uses as much as digits as its factorization.

28310272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110603 (or 110589 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 28310272 is about 5320.7397981860. The cubic root of 28310272 is about 304.7764087343.

It can be divided in two parts, 28310 and 272, that added together give a palindrome (28582).

The spelling of 28310272 in words is "twenty-eight million, three hundred ten thousand, two hundred seventy-two".