20676648 has 32 divisors (see below), whose sum is σ = 51991200. Its totient is φ = 6852288.

The previous prime is 20676637. The next prime is 20676661. The reversal of 20676648 is 84667602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1890 + ... + 6702.

It is an arithmetic number, because the mean of its divisors is an integer number (1624725).

Almost surely, 2^20676648 is an apocalyptic number.

It is an amenable number.

20676648 is an abundant number, since it is smaller than the sum of its proper divisors (31314552).

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

20676648 is a wasteful number, since it uses less digits than its factorization.

20676648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001 (or 4997 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 20676648 is about 4547.1582334465. The cubic root of 20676648 is about 274.4690493669.

The spelling of 20676648 in words is "twenty million, six hundred seventy-six thousand, six hundred forty-eight".