2161422 has 12 divisors (see below), whose sum is σ = 4683120. Its totient is φ = 720468.

The previous prime is 2161417. The next prime is 2161427. The reversal of 2161422 is 2241612.

2161422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2161417) and next prime (2161427).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 120079 = 2161422 / (2 + 1 + 6 + 1 + 4 + 2 + 2).

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 2161395 and 2161404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161427) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 60022 + ... + 60057.

It is an arithmetic number, because the mean of its divisors is an integer number (390260).

2^2161422 is an apocalyptic number.

2161422 is an abundant number, since it is smaller than the sum of its proper divisors (2521698).

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

2161422 is a wasteful number, since it uses less digits than its factorization.

2161422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120087 (or 120084 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2161422 is about 1470.1775402991. The cubic root of 2161422 is about 129.2944419027.

The spelling of 2161422 in words is "two million, one hundred sixty-one thousand, four hundred twenty-two".