1638482282 has 4 divisors (see below), whose sum is σ = 2457723426. Its totient is φ = 819241140.

The previous prime is 1638482267. The next prime is 1638482291. The reversal of 1638482282 is 2822848361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1256631601 + 381850681 = 35449^2 + 19541^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409620569 + ... + 409620572.

Almost surely, 2^1638482282 is an apocalyptic number.

1638482282 is a deficient number, since it is larger than the sum of its proper divisors (819241144).

1638482282 is an equidigital number, since it uses as much as digits as its factorization.

1638482282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819241143.

The product of its digits is 294912, while the sum is 44.

The square root of 1638482282 is about 40478.1704379039. The cubic root of 1638482282 is about 1178.9098142267.

The spelling of 1638482282 in words is "one billion, six hundred thirty-eight million, four hundred eighty-two thousand, two hundred eighty-two".