20971068 has 24 divisors (see below), whose sum is σ = 49736400. Its totient is φ = 6875520.

The previous prime is 20971063. The next prime is 20971121. The reversal of 20971068 is 86017902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20971063) 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, 13593 + ... + 15056.

It is an arithmetic number, because the mean of its divisors is an integer number (2072350).

Almost surely, 2^20971068 is an apocalyptic number.

It is an amenable number.

20971068 is an abundant number, since it is smaller than the sum of its proper divisors (28765332).

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

20971068 is a wasteful number, since it uses less digits than its factorization.

20971068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28717 (or 28715 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 20971068 is about 4579.4178669346. The cubic root of 20971068 is about 275.7656590996.

The spelling of 20971068 in words is "twenty million, nine hundred seventy-one thousand, sixty-eight".