1002081684 has 12 divisors (see below), whose sum is σ = 2338190624. Its totient is φ = 334027224.

The previous prime is 1002081667. The next prime is 1002081713. The reversal of 1002081684 is 4861802001.

It is a tau number, because it is divible by the number of its divisors (12).

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, 41753392 + ... + 41753415.

Almost surely, 2^1002081684 is an apocalyptic number.

It is an amenable number.

1002081684 is an abundant number, since it is smaller than the sum of its proper divisors (1336108940).

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

1002081684 is a wasteful number, since it uses less digits than its factorization.

1002081684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83506814 (or 83506812 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1002081684 is about 31655.6738042329. The cubic root of 1002081684 is about 1000.6934137329.

Adding to 1002081684 its reverse (4861802001), we get a palindrome (5863883685).

The spelling of 1002081684 in words is "one billion, two million, eighty-one thousand, six hundred eighty-four".