1680850356 has 48 divisors (see below), whose sum is σ = 4035326400. Its totient is φ = 544147200.

The previous prime is 1680850337. The next prime is 1680850357. The reversal of 1680850356 is 6530580861.

1680850356 is nontrivially palindromic in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680850357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263695 + ... + 269993.

It is an arithmetic number, because the mean of its divisors is an integer number (84069300).

Almost surely, 2^1680850356 is an apocalyptic number.

It is an amenable number.

1680850356 is an abundant number, since it is smaller than the sum of its proper divisors (2354476044).

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

1680850356 is a wasteful number, since it uses less digits than its factorization.

1680850356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6944 (or 6942 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 1680850356 is about 40998.1750325548. The cubic root of 1680850356 is about 1188.9849301217.

It can be divided in two parts, 16808 and 50356, that multiplied together give a palindrome (846383648).

The spelling of 1680850356 in words is "one billion, six hundred eighty million, eight hundred fifty thousand, three hundred fifty-six".