1680330936 has 32 divisors (see below), whose sum is σ = 4258377360. Its totient is φ = 552436992.

The previous prime is 1680330929. The next prime is 1680330937. The reversal of 1680330936 is 6390330861.

It is a super-3 number, since 3×1680330936³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1680330894 and 1680330903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680330937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477795 + ... + 481298.

Almost surely, 2^1680330936 is an apocalyptic number.

It is an amenable number.

1680330936 is an abundant number, since it is smaller than the sum of its proper divisors (2578046424).

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

1680330936 is a wasteful number, since it uses less digits than its factorization.

1680330936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959175 (or 959171 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 1680330936 is about 40991.8398708816. The cubic root of 1680330936 is about 1188.8624432752.

The spelling of 1680330936 in words is "one billion, six hundred eighty million, three hundred thirty thousand, nine hundred thirty-six".