20393338 has 8 divisors (see below), whose sum is σ = 34960032. Its totient is φ = 8739996.

The previous prime is 20393333. The next prime is 20393363. The reversal of 20393338 is 83339302.

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

It is not an unprimeable number, because it can be changed into a prime (20393333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728320 + ... + 728347.

It is an arithmetic number, because the mean of its divisors is an integer number (4370004).

Almost surely, 2^20393338 is an apocalyptic number.

20393338 is a deficient number, since it is larger than the sum of its proper divisors (14566694).

20393338 is a wasteful number, since it uses less digits than its factorization.

20393338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456676.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 20393338 is about 4515.8983602380. The cubic root of 20393338 is about 273.2096945613.

The spelling of 20393338 in words is "twenty million, three hundred ninety-three thousand, three hundred thirty-eight".