20818483 has 6 divisors (see below), whose sum is σ = 24217476. Its totient is φ = 17844372.

The previous prime is 20818481. The next prime is 20818487. The reversal of 20818483 is 38481802.

It is not a de Polignac number, because 20818483 - 2¹ = 20818481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20818481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212385 + ... + 212482.

It is an arithmetic number, because the mean of its divisors is an integer number (4036246).

Almost surely, 2^20818483 is an apocalyptic number.

20818483 is a deficient number, since it is larger than the sum of its proper divisors (3398993).

20818483 is an equidigital number, since it uses as much as digits as its factorization.

20818483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424881 (or 424874 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 20818483 is about 4562.7275833650. The cubic root of 20818483 is about 275.0952089068.

The spelling of 20818483 in words is "twenty million, eight hundred eighteen thousand, four hundred eighty-three".