20963466 has 24 divisors (see below), whose sum is σ = 45757764. Its totient is φ = 6936000.

The previous prime is 20963417. The next prime is 20963473. The reversal of 20963466 is 66436902.

It can be written as a sum of positive squares in 2 ways, for example, as 20115225 + 848241 = 4485^2 + 921^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20963466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1785 + ... + 6716.

Almost surely, 2^20963466 is an apocalyptic number.

20963466 is an abundant number, since it is smaller than the sum of its proper divisors (24794298).

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

20963466 is a wasteful number, since it uses less digits than its factorization.

20963466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8646 (or 8643 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 20963466 is about 4578.5877735389. The cubic root of 20963466 is about 275.7323334418.

The spelling of 20963466 in words is "twenty million, nine hundred sixty-three thousand, four hundred sixty-six".