28366382 has 8 divisors (see below), whose sum is σ = 46417752. Its totient is φ = 12893800.

The previous prime is 28366363. The next prime is 28366397.

It is a happy number.

28366382 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 644669 + ... + 644712.

It is an arithmetic number, because the mean of its divisors is an integer number (5802219).

Almost surely, 2^28366382 is an apocalyptic number.

28366382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28366382 is a deficient number, since it is larger than the sum of its proper divisors (18051370).

28366382 is a wasteful number, since it uses less digits than its factorization.

28366382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289394.

The product of its digits is 82944, while the sum is 38.

The square root of 28366382 is about 5326.0099511736. The cubic root of 28366382 is about 304.9776280285.

The spelling of 28366382 in words is "twenty-eight million, three hundred sixty-six thousand, three hundred eighty-two".