20705014 has 64 divisors (see below), whose sum is σ = 39191040. Its totient is φ = 8081920.

The previous prime is 20704987. The next prime is 20705017. The reversal of 20705014 is 41050702.

It is a junction number, because it is equal to n+sod(n) for n = 20704982 and 20705000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20705017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249417 + ... + 249499.

It is an arithmetic number, because the mean of its divisors is an integer number (612360).

Almost surely, 2^20705014 is an apocalyptic number.

20705014 is a deficient number, since it is larger than the sum of its proper divisors (18486026).

20705014 is a wasteful number, since it uses less digits than its factorization.

20705014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 20705014 is about 4550.2762553498. The cubic root of 20705014 is about 274.5945054120.

Adding to 20705014 its reverse (41050702), we get a palindrome (61755716).

The spelling of 20705014 in words is "twenty million, seven hundred five thousand, fourteen".