1680795036 has 72 divisors (see below), whose sum is σ = 4417620480. Its totient is φ = 558792432.

The previous prime is 1680795023. The next prime is 1680795071. The reversal of 1680795036 is 6305970861.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1680794982 and 1680795000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 405205 + ... + 409331.

It is an arithmetic number, because the mean of its divisors is an integer number (61355840).

Almost surely, 2^1680795036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1680795036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2208810240).

1680795036 is an abundant number, since it is smaller than the sum of its proper divisors (2736825444).

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

1680795036 is a wasteful number, since it uses less digits than its factorization.

1680795036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565 (or 4551 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 1680795036 is about 40997.5003628270. The cubic root of 1680795036 is about 1188.9718860559.

The spelling of 1680795036 in words is "one billion, six hundred eighty million, seven hundred ninety-five thousand, thirty-six".