20976012 has 36 divisors (see below), whose sum is σ = 53315080. Its totient is φ = 6953472.

The previous prime is 20975989. The next prime is 20976031. The reversal of 20976012 is 21067902.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5439 + ... + 8457.

Almost surely, 2^20976012 is an apocalyptic number.

It is an amenable number.

20976012 is an abundant number, since it is smaller than the sum of its proper divisors (32339068).

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

20976012 is a wasteful number, since it uses less digits than its factorization.

20976012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222 (or 3217 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 20976012 is about 4579.9576417255. The cubic root of 20976012 is about 275.7873282915.

The spelling of 20976012 in words is "twenty million, nine hundred seventy-six thousand, twelve".