28383386 has 16 divisors (see below), whose sum is σ = 43519680. Its totient is φ = 13880160.

The previous prime is 28383371. The next prime is 28383389. The reversal of 28383386 is 68338382.

It is not an unprimeable number, because it can be changed into a prime (28383389) 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 7 ways as a sum of consecutive naturals, for example, 18725 + ... + 20183.

It is an arithmetic number, because the mean of its divisors is an integer number (2719980).

Almost surely, 2^28383386 is an apocalyptic number.

28383386 is a deficient number, since it is larger than the sum of its proper divisors (15136294).

28383386 is a wasteful number, since it uses less digits than its factorization.

28383386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669.

The product of its digits is 165888, while the sum is 41.

The square root of 28383386 is about 5327.6060289777. The cubic root of 28383386 is about 305.0385546532.

The spelling of 28383386 in words is "twenty-eight million, three hundred eighty-three thousand, three hundred eighty-six".