20338485 has 16 divisors (see below), whose sum is σ = 33156864. Its totient is φ = 10642112.

The previous prime is 20338481. The next prime is 20338489. The reversal of 20338485 is 58483302.

It is an interprime number because it is at equal distance from previous prime (20338481) and next prime (20338489).

It is a cyclic number.

It is not a de Polignac number, because 20338485 - 2² = 20338481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20338481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11997 + ... + 13586.

It is an arithmetic number, because the mean of its divisors is an integer number (2072304).

Almost surely, 2^20338485 is an apocalyptic number.

It is an amenable number.

20338485 is a deficient number, since it is larger than the sum of its proper divisors (12818379).

20338485 is a wasteful number, since it uses less digits than its factorization.

20338485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25644.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 20338485 is about 4509.8209498826. The cubic root of 20338485 is about 272.9645192655.

The spelling of 20338485 in words is "twenty million, three hundred thirty-eight thousand, four hundred eighty-five".