28456184 has 8 divisors (see below), whose sum is σ = 53355360. Its totient is φ = 14228088.

The previous prime is 28456159. The next prime is 28456187. The reversal of 28456184 is 48165482.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28456187) 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, 1778504 + ... + 1778519.

It is an arithmetic number, because the mean of its divisors is an integer number (6669420).

Almost surely, 2^28456184 is an apocalyptic number.

It is an amenable number.

28456184 is a deficient number, since it is larger than the sum of its proper divisors (24899176).

28456184 is a wasteful number, since it uses less digits than its factorization.

28456184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557029 (or 3557025 counting only the distinct ones).

The product of its digits is 61440, while the sum is 38.

The square root of 28456184 is about 5334.4338031322. The cubic root of 28456184 is about 305.2991206854.

The spelling of 28456184 in words is "twenty-eight million, four hundred fifty-six thousand, one hundred eighty-four".