2161368 has 48 divisors (see below), whose sum is σ = 6388200. Its totient is φ = 654720.

The previous prime is 2161349. The next prime is 2161373. The reversal of 2161368 is 8631612.

2161368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 573 + ... + 2156.

2^2161368 is an apocalyptic number.

It is an amenable number.

2161368 is an abundant number, since it is smaller than the sum of its proper divisors (4226832).

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

2161368 is a wasteful number, since it uses less digits than its factorization.

2161368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752 (or 2745 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2161368 is about 1470.1591750555. The cubic root of 2161368 is about 129.2933651489.

The spelling of 2161368 in words is "two million, one hundred sixty-one thousand, three hundred sixty-eight".