20039005 has 16 divisors (see below), whose sum is σ = 29099520. Its totient is φ = 12932352.

The previous prime is 20038987. The next prime is 20039069. The reversal of 20039005 is 50093002.

It is a cyclic number.

It is not a de Polignac number, because 20039005 - 2⁷ = 20038877 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 16245 + ... + 17434.

It is an arithmetic number, because the mean of its divisors is an integer number (1818720).

Almost surely, 2^20039005 is an apocalyptic number.

It is an amenable number.

20039005 is a deficient number, since it is larger than the sum of its proper divisors (9060515).

20039005 is a wasteful number, since it uses less digits than its factorization.

20039005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33708.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 20039005 is about 4476.4947224363. The cubic root of 20039005 is about 271.6181068353.

The spelling of 20039005 in words is "twenty million, thirty-nine thousand, five".