1021800483 has 24 divisors (see below), whose sum is σ = 1649387376. Its totient is φ = 604166400.

The previous prime is 1021800433. The next prime is 1021800509. The reversal of 1021800483 is 3840081201.

1021800483 is a `hidden beast` number, since 1 + 0 + 2 + 180 + 0 + 483 = 666.

It is not a de Polignac number, because 1021800483 - 2¹⁶ = 1021734947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021800433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121810 + ... + 129927.

It is an arithmetic number, because the mean of its divisors is an integer number (68724474).

Almost surely, 2^1021800483 is an apocalyptic number.

1021800483 is a deficient number, since it is larger than the sum of its proper divisors (627586893).

1021800483 is a wasteful number, since it uses less digits than its factorization.

1021800483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251795 (or 251792 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1021800483 is about 31965.6140719993. The cubic root of 1021800483 is about 1007.2146512963.

Adding to 1021800483 its reverse (3840081201), we get a palindrome (4861881684).

The spelling of 1021800483 in words is "one billion, twenty-one million, eight hundred thousand, four hundred eighty-three".