1668185382 has 16 divisors (see below), whose sum is σ = 3407357952. Its totient is φ = 544230600.

The previous prime is 1668185317. The next prime is 1668185383. The reversal of 1668185382 is 2835818661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668185383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2957494 + ... + 2958057.

It is an arithmetic number, because the mean of its divisors is an integer number (212959872).

Almost surely, 2^1668185382 is an apocalyptic number.

1668185382 is an abundant number, since it is smaller than the sum of its proper divisors (1739172570).

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

1668185382 is a wasteful number, since it uses less digits than its factorization.

1668185382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915603.

The product of its digits is 552960, while the sum is 48.

The square root of 1668185382 is about 40843.4251991676. The cubic root of 1668185382 is about 1185.9911193926.

The spelling of 1668185382 in words is "one billion, six hundred sixty-eight million, one hundred eighty-five thousand, three hundred eighty-two".