20058909 has 16 divisors (see below), whose sum is σ = 29131200. Its totient is φ = 12203136.

The previous prime is 20058901. The next prime is 20058911. The reversal of 20058909 is 90985002.

It is not a de Polignac number, because 20058909 - 2³ = 20058901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20058909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20058901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582 + ... + 6360.

It is an arithmetic number, because the mean of its divisors is an integer number (1820700).

Almost surely, 2^20058909 is an apocalyptic number.

It is an amenable number.

20058909 is a deficient number, since it is larger than the sum of its proper divisors (9072291).

20058909 is a wasteful number, since it uses less digits than its factorization.

20058909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5884.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 20058909 is about 4478.7173387031. The cubic root of 20058909 is about 271.7080064724.

The spelling of 20058909 in words is "twenty million, fifty-eight thousand, nine hundred nine".