20418014 has 4 divisors (see below), whose sum is σ = 30627024. Its totient is φ = 10209006.

The previous prime is 20418011. The next prime is 20418031. The reversal of 20418014 is 41081402.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20418011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5104502 + ... + 5104505.

It is an arithmetic number, because the mean of its divisors is an integer number (7656756).

Almost surely, 2^20418014 is an apocalyptic number.

20418014 is a deficient number, since it is larger than the sum of its proper divisors (10209010).

20418014 is a wasteful number, since it uses less digits than its factorization.

20418014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10209009.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 20418014 is about 4518.6296595317. The cubic root of 20418014 is about 273.3198449950.

Adding to 20418014 its reverse (41081402), we get a palindrome (61499416).

The spelling of 20418014 in words is "twenty million, four hundred eighteen thousand, fourteen".