1021800484 has 12 divisors (see below), whose sum is σ = 1865896704. Its totient is φ = 488687144.

The previous prime is 1021800433. The next prime is 1021800509. The reversal of 1021800484 is 4840081201.

1021800484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5553172 + ... + 5553355.

It is an arithmetic number, because the mean of its divisors is an integer number (155491392).

Almost surely, 2^1021800484 is an apocalyptic number.

It is an amenable number.

1021800484 is a deficient number, since it is larger than the sum of its proper divisors (844096220).

1021800484 is a wasteful number, since it uses less digits than its factorization.

1021800484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11106554 (or 11106552 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 1021800484 is about 31965.6140876411. The cubic root of 1021800484 is about 1007.2146516248.

Adding to 1021800484 its reverse (4840081201), we get a palindrome (5861881685).

The spelling of 1021800484 in words is "one billion, twenty-one million, eight hundred thousand, four hundred eighty-four".