1680004936 has 8 divisors (see below), whose sum is σ = 3150009270. Its totient is φ = 840002464.

The previous prime is 1680004919. The next prime is 1680004951. The reversal of 1680004936 is 6394000861.

It can be written as a sum of positive squares in only one way, i.e., 1155320100 + 524684836 = 33990^2 + 22906^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1680004895 and 1680004904.

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, 105000301 + ... + 105000316.

Almost surely, 2^1680004936 is an apocalyptic number.

It is an amenable number.

1680004936 is a deficient number, since it is larger than the sum of its proper divisors (1470004334).

1680004936 is a wasteful number, since it uses less digits than its factorization.

1680004936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210000623 (or 210000619 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1680004936 is about 40987.8632768287. The cubic root of 1680004936 is about 1188.7855548054.

The spelling of 1680004936 in words is "one billion, six hundred eighty million, four thousand, nine hundred thirty-six".