20358065 has 32 divisors (see below), whose sum is σ = 30433536. Its totient is φ = 12729600.

The previous prime is 20358031. The next prime is 20358073. The reversal of 20358065 is 56085302.

It is not a de Polignac number, because 20358065 - 2¹⁴ = 20341681 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45734 + ... + 46176.

It is an arithmetic number, because the mean of its divisors is an integer number (951048).

Almost surely, 2^20358065 is an apocalyptic number.

It is an amenable number.

20358065 is a deficient number, since it is larger than the sum of its proper divisors (10075471).

20358065 is a wasteful number, since it uses less digits than its factorization.

20358065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 20358065 is about 4511.9912455589. The cubic root of 20358065 is about 273.0520861139.

The spelling of 20358065 in words is "twenty million, three hundred fifty-eight thousand, sixty-five".