20384353 has 8 divisors (see below), whose sum is σ = 22276800. Its totient is φ = 18498480.

The previous prime is 20384347. The next prime is 20384363. The reversal of 20384353 is 35348302.

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

It is not a de Polignac number, because 20384353 - 2⁹ = 20383841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20384333) 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, 6723 + ... + 9271.

It is an arithmetic number, because the mean of its divisors is an integer number (2784600).

Almost surely, 2^20384353 is an apocalyptic number.

It is an amenable number.

20384353 is a deficient number, since it is larger than the sum of its proper divisors (1892447).

20384353 is a wasteful number, since it uses less digits than its factorization.

20384353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 20384353 is about 4514.9034319684. The cubic root of 20384353 is about 273.1695646308.

The spelling of 20384353 in words is "twenty million, three hundred eighty-four thousand, three hundred fifty-three".