20338065 has 48 divisors (see below), whose sum is σ = 38840256. Its totient is φ = 9763200.

The previous prime is 20338057. The next prime is 20338081. The reversal of 20338065 is 56083302.

It is not a de Polignac number, because 20338065 - 2³ = 20338057 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89482 + ... + 89708.

It is an arithmetic number, because the mean of its divisors is an integer number (809172).

Almost surely, 2^20338065 is an apocalyptic number.

It is an amenable number.

20338065 is a deficient number, since it is larger than the sum of its proper divisors (18502191).

20338065 is a wasteful number, since it uses less digits than its factorization.

20338065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20338065 is about 4509.7743846006. The cubic root of 20338065 is about 272.9626403008.

The spelling of 20338065 in words is "twenty million, three hundred thirty-eight thousand, sixty-five".