28132366 has 8 divisors (see below), whose sum is σ = 42672960. Its totient is φ = 13908048.

The previous prime is 28132361. The next prime is 28132373. The reversal of 28132366 is 66323182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28132361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 78846 + ... + 79201.

It is an arithmetic number, because the mean of its divisors is an integer number (5334120).

Almost surely, 2^28132366 is an apocalyptic number.

28132366 is a deficient number, since it is larger than the sum of its proper divisors (14540594).

28132366 is a wasteful number, since it uses less digits than its factorization.

28132366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158138.

The product of its digits is 10368, while the sum is 31.

The square root of 28132366 is about 5303.9952865741. The cubic root of 28132366 is about 304.1366464982.

The spelling of 28132366 in words is "twenty-eight million, one hundred thirty-two thousand, three hundred sixty-six".