20926105 has 8 divisors (see below), whose sum is σ = 25136064. Its totient is φ = 16724400.

The previous prime is 20926093. The next prime is 20926153. The reversal of 20926105 is 50162902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20926105 - 2⁷ = 20925977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20926105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7900 + ... + 10210.

It is an arithmetic number, because the mean of its divisors is an integer number (3142008).

Almost surely, 2^20926105 is an apocalyptic number.

It is an amenable number.

20926105 is a deficient number, since it is larger than the sum of its proper divisors (4209959).

20926105 is a wasteful number, since it uses less digits than its factorization.

20926105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 20926105 is about 4574.5059842567. The cubic root of 20926105 is about 275.5684330382.

The spelling of 20926105 in words is "twenty million, nine hundred twenty-six thousand, one hundred five".