28260366 has 16 divisors (see below), whose sum is σ = 56640000. Its totient is φ = 9400248.

The previous prime is 28260361. The next prime is 28260367. The reversal of 28260366 is 66306282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28260361) 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 in 7 ways as a sum of consecutive naturals, for example, 1726 + ... + 7713.

It is an arithmetic number, because the mean of its divisors is an integer number (3540000).

Almost surely, 2^28260366 is an apocalyptic number.

28260366 is an abundant number, since it is smaller than the sum of its proper divisors (28379634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28260366 is a wasteful number, since it uses less digits than its factorization.

28260366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9943.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 28260366 is about 5316.0479681809. The cubic root of 28260366 is about 304.5972144377.

The spelling of 28260366 in words is "twenty-eight million, two hundred sixty thousand, three hundred sixty-six".