20414385 has 24 divisors (see below), whose sum is σ = 35665344. Its totient is φ = 10801440.

The previous prime is 20414371. The next prime is 20414389. The reversal of 20414385 is 58341402.

20414385 is nontrivially palindromic in base 13.

It is not a de Polignac number, because 20414385 - 2⁵ = 20414353 is a prime.

It is a super-2 number, since 2×20414385² = 833494229856450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20414389) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4164 + ... + 7626.

It is an arithmetic number, because the mean of its divisors is an integer number (1486056).

Almost surely, 2^20414385 is an apocalyptic number.

It is an amenable number.

20414385 is a deficient number, since it is larger than the sum of its proper divisors (15250959).

20414385 is a wasteful number, since it uses less digits than its factorization.

20414385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605 (or 3602 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 20414385 is about 4518.2280818923. The cubic root of 20414385 is about 273.3036511823.

Adding to 20414385 its reverse (58341402), we get a palindrome (78755787).

The spelling of 20414385 in words is "twenty million, four hundred fourteen thousand, three hundred eighty-five".