1685716382 has 32 divisors (see below), whose sum is σ = 2995411968. Its totient is φ = 696506976.

The previous prime is 1685716381. The next prime is 1685716387. The reversal of 1685716382 is 2836175861.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685716381) 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, 24968 + ... + 63204.

It is an arithmetic number, because the mean of its divisors is an integer number (93606624).

Almost surely, 2^1685716382 is an apocalyptic number.

1685716382 is a deficient number, since it is larger than the sum of its proper divisors (1309695586).

1685716382 is a wasteful number, since it uses less digits than its factorization.

1685716382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38360.

The product of its digits is 483840, while the sum is 47.

The square root of 1685716382 is about 41057.4765663941. The cubic root of 1685716382 is about 1190.1311867237.

The spelling of 1685716382 in words is "one billion, six hundred eighty-five million, seven hundred sixteen thousand, three hundred eighty-two".