20414405 has 16 divisors (see below), whose sum is σ = 27648000. Its totient is φ = 14333760.

The previous prime is 20414393. The next prime is 20414411. The reversal of 20414405 is 50441402.

It is not a de Polignac number, because 20414405 - 2⁴ = 20414389 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4805 + ... + 7994.

It is an arithmetic number, because the mean of its divisors is an integer number (1728000).

Almost surely, 2^20414405 is an apocalyptic number.

It is an amenable number.

20414405 is a deficient number, since it is larger than the sum of its proper divisors (7233595).

20414405 is a wasteful number, since it uses less digits than its factorization.

20414405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 20414405 is about 4518.2302951488. The cubic root of 20414405 is about 273.3037404342.

Adding to 20414405 its reverse (50441402), we get a palindrome (70855807).

It can be divided in two parts, 2041 and 4405, that added together give a palindrome (6446).

The spelling of 20414405 in words is "twenty million, four hundred fourteen thousand, four hundred five".