28441736 has 8 divisors (see below), whose sum is σ = 53328270. Its totient is φ = 14220864.

The previous prime is 28441733. The next prime is 28441739. The reversal of 28441736 is 63714482.

It is an interprime number because it is at equal distance from previous prime (28441733) and next prime (28441739).

It can be written as a sum of positive squares in only one way, i.e., 26977636 + 1464100 = 5194^2 + 1210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 28441696 and 28441705.

It is not an unprimeable number, because it can be changed into a prime (28441733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1777601 + ... + 1777616.

Almost surely, 2^28441736 is an apocalyptic number.

It is an amenable number.

28441736 is a deficient number, since it is larger than the sum of its proper divisors (24886534).

28441736 is a wasteful number, since it uses less digits than its factorization.

28441736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555223 (or 3555219 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 28441736 is about 5333.0794106220. The cubic root of 28441736 is about 305.2474423059.

The spelling of 28441736 in words is "twenty-eight million, four hundred forty-one thousand, seven hundred thirty-six".