1678309682 has 48 divisors (see below), whose sum is σ = 3033895680. Its totient is φ = 693554400.

The previous prime is 1678309681. The next prime is 1678309697. The reversal of 1678309682 is 2869038761.

It is a super-2 number, since 2×1678309682² = 5633446777389882248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1678309682.

It is not an unprimeable number, because it can be changed into a prime (1678309681) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 1004744 + ... + 1006412.

It is an arithmetic number, because the mean of its divisors is an integer number (63206160).

Almost surely, 2^1678309682 is an apocalyptic number.

1678309682 is a deficient number, since it is larger than the sum of its proper divisors (1355585998).

1678309682 is a wasteful number, since it uses less digits than its factorization.

1678309682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2040 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 1678309682 is about 40967.1781063817. The cubic root of 1678309682 is about 1188.3855615939.

The spelling of 1678309682 in words is "one billion, six hundred seventy-eight million, three hundred nine thousand, six hundred eighty-two".