2161000382 has 8 divisors (see below), whose sum is σ = 3249022752. Its totient is φ = 1077992800.

The previous prime is 2161000363. The next prime is 2161000393. The reversal of 2161000382 is 2830001612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1252619 + ... + 1254342.

It is an arithmetic number, because the mean of its divisors is an integer number (406127844).

Almost surely, 2^2161000382 is an apocalyptic number.

2161000382 is a deficient number, since it is larger than the sum of its proper divisors (1088022370).

2161000382 is a wasteful number, since it uses less digits than its factorization.

2161000382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507394.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2161000382 is about 46486.5613053923. The cubic root of 2161000382 is about 1292.8603441155.

Adding to 2161000382 its reverse (2830001612), we get a palindrome (4991001994).

The spelling of 2161000382 in words is "two billion, one hundred sixty-one million, three hundred eighty-two", and thus it is an aban number.