28516466 has 16 divisors (see below), whose sum is σ = 48169728. Its totient is φ = 12543600.

The previous prime is 28516459. The next prime is 28516489. The reversal of 28516466 is 66461582.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20225 + ... + 21588.

It is an arithmetic number, because the mean of its divisors is an integer number (3010608).

Almost surely, 2^28516466 is an apocalyptic number.

28516466 is a deficient number, since it is larger than the sum of its proper divisors (19653262).

28516466 is a wasteful number, since it uses less digits than its factorization.

28516466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41857.

The product of its digits is 69120, while the sum is 38.

The square root of 28516466 is about 5340.0810855267. The cubic root of 28516466 is about 305.5145520197.

Subtracting 28516466 from its reverse (66461582), we obtain a triangular number (37945116 = T₈₇₁₁).

It can be divided in two parts, 28516 and 466, that added together give a palindrome (28982).

The spelling of 28516466 in words is "twenty-eight million, five hundred sixteen thousand, four hundred sixty-six".