1685372022 has 40 divisors (see below), whose sum is σ = 3778830000. Its totient is φ = 561441456.

The previous prime is 1685372011. The next prime is 1685372063. The reversal of 1685372022 is 2202735861.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 484104 + ... + 487572.

It is an arithmetic number, because the mean of its divisors is an integer number (94470750).

Almost surely, 2^1685372022 is an apocalyptic number.

1685372022 is an abundant number, since it is smaller than the sum of its proper divisors (2093457978).

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

1685372022 is a wasteful number, since it uses less digits than its factorization.

1685372022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6482 (or 6473 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1685372022 is about 41053.2827189252. The cubic root of 1685372022 is about 1190.0501407680.

The spelling of 1685372022 in words is "one billion, six hundred eighty-five million, three hundred seventy-two thousand, twenty-two".