1686980350 has 96 divisors (see below), whose sum is σ = 3503275776. Its totient is φ = 599270400.

The previous prime is 1686980279. The next prime is 1686980357. The reversal of 1686980350 is 530896861.

It is a super-2 number, since 2×1686980350² = 5691805402572245000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1686980350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1686980357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5494897 + ... + 5495203.

It is an arithmetic number, because the mean of its divisors is an integer number (36492456).

Almost surely, 2^1686980350 is an apocalyptic number.

1686980350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1686980350 is an abundant number, since it is smaller than the sum of its proper divisors (1816295426).

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

1686980350 is a wasteful number, since it uses less digits than its factorization.

1686980350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 1686980350 is about 41072.8663475049. The cubic root of 1686980350 is about 1190.4285700659.

The spelling of 1686980350 in words is "one billion, six hundred eighty-six million, nine hundred eighty thousand, three hundred fifty".