20786338 has 8 divisors (see below), whose sum is σ = 31404240. Its totient is φ = 10318260.

The previous prime is 20786333. The next prime is 20786347. The reversal of 20786338 is 83368702.

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

It is a junction number, because it is equal to n+sod(n) for n = 20786297 and 20786306.

It is not an unprimeable number, because it can be changed into a prime (20786333) 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, 37108 + ... + 37663.

It is an arithmetic number, because the mean of its divisors is an integer number (3925530).

Almost surely, 2^20786338 is an apocalyptic number.

20786338 is a deficient number, since it is larger than the sum of its proper divisors (10617902).

20786338 is a wasteful number, since it uses less digits than its factorization.

20786338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74912.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 20786338 is about 4559.2036585351. The cubic root of 20786338 is about 274.9535480768.

The spelling of 20786338 in words is "twenty million, seven hundred eighty-six thousand, three hundred thirty-eight".