20966284 has 24 divisors (see below), whose sum is σ = 38044160. Its totient is φ = 10103184.

The previous prime is 20966279. The next prime is 20966357. The reversal of 20966284 is 48266902.

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, 12817 + ... + 14359.

Almost surely, 2^20966284 is an apocalyptic number.

It is an amenable number.

20966284 is a deficient number, since it is larger than the sum of its proper divisors (17077876).

20966284 is a wasteful number, since it uses less digits than its factorization.

20966284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 20966284 is about 4578.8955000087. The cubic root of 20966284 is about 275.7446879336.

The spelling of 20966284 in words is "twenty million, nine hundred sixty-six thousand, two hundred eighty-four".