20765338 has 16 divisors (see below), whose sum is σ = 34110720. Its totient is φ = 9402400.

The previous prime is 20765333. The next prime is 20765341. The reversal of 20765338 is 83356702.

It is not an unprimeable number, because it can be changed into a prime (20765333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4503 + ... + 7861.

It is an arithmetic number, because the mean of its divisors is an integer number (2131920).

Almost surely, 2^20765338 is an apocalyptic number.

20765338 is a deficient number, since it is larger than the sum of its proper divisors (13345382).

20765338 is a wasteful number, since it uses less digits than its factorization.

20765338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 20765338 is about 4556.9000427922. The cubic root of 20765338 is about 274.8609236158.

The spelling of 20765338 in words is "twenty million, seven hundred sixty-five thousand, three hundred thirty-eight".