20983041 has 12 divisors (see below), whose sum is σ = 30444180. Its totient is φ = 13926240.

The previous prime is 20983031. The next prime is 20983043. The reversal of 20983041 is 14038902.

It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 4410000 = 4071^2 + 2100^2 .

It is not a de Polignac number, because 20983041 - 2⁶ = 20982977 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20982996 and 20983014.

It is not an unprimeable number, because it can be changed into a prime (20983043) by changing a digit.

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, 3030 + ... + 7151.

It is an arithmetic number, because the mean of its divisors is an integer number (2537015).

Almost surely, 2^20983041 is an apocalyptic number.

It is an amenable number.

20983041 is a deficient number, since it is larger than the sum of its proper divisors (9461139).

20983041 is a wasteful number, since it uses less digits than its factorization.

20983041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10416 (or 10413 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20983041 is about 4580.7249426264. The cubic root of 20983041 is about 275.8181300257.

The spelling of 20983041 in words is "twenty million, nine hundred eighty-three thousand, forty-one".