1680126 has 32 divisors (see below), whose sum is σ = 3886080. Its totient is φ = 474336.

The previous prime is 1680121. The next prime is 1680131. The reversal of 1680126 is 6210861.

It is an interprime number because it is at equal distance from previous prime (1680121) and next prime (1680131).

It is a junction number, because it is equal to n+sod(n) for n = 1680096 and 1680105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680121) 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 15 ways as a sum of consecutive naturals, for example, 4395 + ... + 4761.

It is an arithmetic number, because the mean of its divisors is an integer number (121440).

2^1680126 is an apocalyptic number.

1680126 is an abundant number, since it is smaller than the sum of its proper divisors (2205954).

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

1680126 is a wasteful number, since it uses less digits than its factorization.

1680126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1680126 is about 1296.1967443255. The cubic root of 1680126 is about 118.8814109419.

Adding to 1680126 its reverse (6210861), we get a palindrome (7890987).

The spelling of 1680126 in words is "one million, six hundred eighty thousand, one hundred twenty-six".