20976168 has 32 divisors (see below), whose sum is σ = 52558560. Its totient is φ = 6976320.

The previous prime is 20976167. The next prime is 20976203. The reversal of 20976168 is 86167902.

It is not an unprimeable number, because it can be changed into a prime (20976167) 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, 15603 + ... + 16893.

It is an arithmetic number, because the mean of its divisors is an integer number (1642455).

Almost surely, 2^20976168 is an apocalyptic number.

It is an amenable number.

20976168 is an abundant number, since it is smaller than the sum of its proper divisors (31582392).

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

20976168 is a wasteful number, since it uses less digits than its factorization.

20976168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977 (or 1973 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 20976168 is about 4579.9746724191. The cubic root of 20976168 is about 275.7880119727.

The spelling of 20976168 in words is "twenty million, nine hundred seventy-six thousand, one hundred sixty-eight".