1685368212 has 48 divisors (see below), whose sum is σ = 4292568000. Its totient is φ = 510415360.

The previous prime is 1685368211. The next prime is 1685368231. The reversal of 1685368212 is 2128635861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685368211) 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, 333964 + ... + 338972.

It is an arithmetic number, because the mean of its divisors is an integer number (89428500).

Almost surely, 2^1685368212 is an apocalyptic number.

1685368212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1685368212 is an abundant number, since it is smaller than the sum of its proper divisors (2607199788).

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

1685368212 is a wasteful number, since it uses less digits than its factorization.

1685368212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7576 (or 7574 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 1685368212 is about 41053.2363157888. The cubic root of 1685368212 is about 1190.0492440135.

The spelling of 1685368212 in words is "one billion, six hundred eighty-five million, three hundred sixty-eight thousand, two hundred twelve".