20338838 has 8 divisors (see below), whose sum is σ = 32855088. Its totient is φ = 9387144.

The previous prime is 20338837. The next prime is 20338841. The reversal of 20338838 is 83883302.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20338798 and 20338807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20338837) 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, 391106 + ... + 391157.

It is an arithmetic number, because the mean of its divisors is an integer number (4106886).

Almost surely, 2^20338838 is an apocalyptic number.

20338838 is a deficient number, since it is larger than the sum of its proper divisors (12516250).

20338838 is a wasteful number, since it uses less digits than its factorization.

20338838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782278.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 20338838 is about 4509.8600865215. The cubic root of 20338838 is about 272.9660984706.

The spelling of 20338838 in words is "twenty million, three hundred thirty-eight thousand, eight hundred thirty-eight".