20338306 has 8 divisors (see below), whose sum is σ = 30530124. Its totient is φ = 10161600.

The previous prime is 20338301. The next prime is 20338327. The reversal of 20338306 is 60383302.

It can be written as a sum of positive squares in 2 ways, for example, as 20331081 + 7225 = 4509^2 + 85^2 .

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 (20338301) 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 3 ways as a sum of consecutive naturals, for example, 606 + ... + 6406.

Almost surely, 2^20338306 is an apocalyptic number.

20338306 is a deficient number, since it is larger than the sum of its proper divisors (10191818).

20338306 is a wasteful number, since it uses less digits than its factorization.

20338306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20338306 is about 4509.8011042617. The cubic root of 20338306 is about 272.9637184718.

The spelling of 20338306 in words is "twenty million, three hundred thirty-eight thousand, three hundred six".