20914168 has 32 divisors (see below), whose sum is σ = 43781760. Its totient is φ = 9283680.

The previous prime is 20914163. The next prime is 20914169. The reversal of 20914168 is 86141902.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914163) 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 7 ways as a sum of consecutive naturals, for example, 1021 + ... + 6547.

It is an arithmetic number, because the mean of its divisors is an integer number (1368180).

Almost surely, 2^20914168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20914168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21890880).

20914168 is an abundant number, since it is smaller than the sum of its proper divisors (22867592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20914168 is a wasteful number, since it uses less digits than its factorization.

20914168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587 (or 5583 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 20914168 is about 4573.2010670864. The cubic root of 20914168 is about 275.5160250361.

The spelling of 20914168 in words is "twenty million, nine hundred fourteen thousand, one hundred sixty-eight".