1982664628 has 12 divisors (see below), whose sum is σ = 3965329312. Its totient is φ = 849713400.

The previous prime is 1982664589. The next prime is 1982664631. The reversal of 1982664628 is 8264662891.

1982664628 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 35404698 + ... + 35404753.

Almost surely, 2^1982664628 is an apocalyptic number.

It is an amenable number.

1982664628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1982664628 is a wasteful number, since it uses less digits than its factorization.

1982664628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70809462 (or 70809460 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The square root of 1982664628 is about 44527.1223862490. The cubic root of 1982664628 is about 1256.2702815699.

The spelling of 1982664628 in words is "one billion, nine hundred eighty-two million, six hundred sixty-four thousand, six hundred twenty-eight".