28333382 has 32 divisors (see below), whose sum is σ = 53270784. Its totient is φ = 10980000.

The previous prime is 28333369. The next prime is 28333391.

28333382 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 38288 + ... + 39020.

It is an arithmetic number, because the mean of its divisors is an integer number (1664712).

Almost surely, 2^28333382 is an apocalyptic number.

28333382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28333382 is a deficient number, since it is larger than the sum of its proper divisors (24937402).

28333382 is a wasteful number, since it uses less digits than its factorization.

28333382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its digits is 20736, while the sum is 32.

The square root of 28333382 is about 5322.9110456591. The cubic root of 28333382 is about 304.8593170057.

The spelling of 28333382 in words is "twenty-eight million, three hundred thirty-three thousand, three hundred eighty-two".