1685231382 has 16 divisors (see below), whose sum is σ = 3401963712. Its totient is φ = 556493640.

The previous prime is 1685231377. The next prime is 1685231411. The reversal of 1685231382 is 2831325861.

It is a self number, because there is not a number n which added to its sum of digits gives 1685231382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311844 + ... + 1313127.

It is an arithmetic number, because the mean of its divisors is an integer number (212622732).

Almost surely, 2^1685231382 is an apocalyptic number.

1685231382 is an abundant number, since it is smaller than the sum of its proper divisors (1716732330).

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

1685231382 is a wasteful number, since it uses less digits than its factorization.

1685231382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625083.

The product of its digits is 69120, while the sum is 39.

The square root of 1685231382 is about 41051.5697872810. The cubic root of 1685231382 is about 1190.0170376300.

The spelling of 1685231382 in words is "one billion, six hundred eighty-five million, two hundred thirty-one thousand, three hundred eighty-two".