2154422 has 8 divisors (see below), whose sum is σ = 3238176. Its totient is φ = 1075032.

The previous prime is 2154419. The next prime is 2154487. The reversal of 2154422 is 2244512.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2154394 and 2154403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803 + ... + 2225.

It is an arithmetic number, because the mean of its divisors is an integer number (404772).

2^2154422 is an apocalyptic number.

2154422 is a deficient number, since it is larger than the sum of its proper divisors (1083754).

2154422 is a wasteful number, since it uses less digits than its factorization.

2154422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182.

The product of its digits is 640, while the sum is 20.

The square root of 2154422 is about 1467.7949448067. The cubic root of 2154422 is about 129.1547129185.

Adding to 2154422 its reverse (2244512), we get a palindrome (4398934).

The spelling of 2154422 in words is "two million, one hundred fifty-four thousand, four hundred twenty-two".