20419105 has 8 divisors (see below), whose sum is σ = 28003392. Its totient is φ = 14001648.

The previous prime is 20419097. The next prime is 20419123. The reversal of 20419105 is 50191402.

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

It is a cyclic number.

It is not a de Polignac number, because 20419105 - 2³ = 20419097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 291667 + ... + 291736.

It is an arithmetic number, because the mean of its divisors is an integer number (3500424).

Almost surely, 2^20419105 is an apocalyptic number.

It is an amenable number.

20419105 is a deficient number, since it is larger than the sum of its proper divisors (7584287).

20419105 is an equidigital number, since it uses as much as digits as its factorization.

20419105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583415.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 20419105 is about 4518.7503803596. The cubic root of 20419105 is about 273.3247130271.

The spelling of 20419105 in words is "twenty million, four hundred nineteen thousand, one hundred five".