20811314 has 8 divisors (see below), whose sum is σ = 31347228. Its totient is φ = 10362240.

The previous prime is 20811283. The next prime is 20811331. The reversal of 20811314 is 41311802.

It can be written as a sum of positive squares in 2 ways, for example, as 20097289 + 714025 = 4483^2 + 845^2 .

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

It is a super-2 number, since 2×20811314² = 866221580813192, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21107 + ... + 22070.

Almost surely, 2^20811314 is an apocalyptic number.

20811314 is a deficient number, since it is larger than the sum of its proper divisors (10535914).

20811314 is a wasteful number, since it uses less digits than its factorization.

20811314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43420.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 20811314 is about 4561.9419110725. The cubic root of 20811314 is about 275.0636282521.

The spelling of 20811314 in words is "twenty million, eight hundred eleven thousand, three hundred fourteen".