1630483821 has 24 divisors (see below), whose sum is σ = 2535960960. Its totient is φ = 1005703296.

The previous prime is 1630483769. The next prime is 1630483873. The reversal of 1630483821 is 1283840361.

It is an interprime number because it is at equal distance from previous prime (1630483769) and next prime (1630483873).

It is not a de Polignac number, because 1630483821 - 2⁷ = 1630483693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630483021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81285 + ... + 99338.

It is an arithmetic number, because the mean of its divisors is an integer number (105665040).

Almost surely, 2^1630483821 is an apocalyptic number.

It is an amenable number.

1630483821 is a deficient number, since it is larger than the sum of its proper divisors (905477139).

1630483821 is a wasteful number, since it uses less digits than its factorization.

1630483821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180705 (or 180702 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1630483821 is about 40379.2498815914. The cubic root of 1630483821 is about 1176.9883511476.

The spelling of 1630483821 in words is "one billion, six hundred thirty million, four hundred eighty-three thousand, eight hundred twenty-one".