20314918 has 16 divisors (see below), whose sum is σ = 32921280. Its totient is φ = 9346176.

The previous prime is 20314907. The next prime is 20314919. The reversal of 20314918 is 81941302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20314919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8478 + ... + 10606.

It is an arithmetic number, because the mean of its divisors is an integer number (2057580).

Almost surely, 2^20314918 is an apocalyptic number.

20314918 is a deficient number, since it is larger than the sum of its proper divisors (12606362).

20314918 is a wasteful number, since it uses less digits than its factorization.

20314918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 20314918 is about 4507.2073393621. The cubic root of 20314918 is about 272.8590469531.

The spelling of 20314918 in words is "twenty million, three hundred fourteen thousand, nine hundred eighteen".