2142422 has 8 divisors (see below), whose sum is σ = 3234576. Its totient is φ = 1064232.

The previous prime is 2142403. The next prime is 2142431. The reversal of 2142422 is 2242412.

It is a happy number.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2142422.

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, 3098 + ... + 3725.

It is an arithmetic number, because the mean of its divisors is an integer number (404322).

2^2142422 is an apocalyptic number.

2142422 is a deficient number, since it is larger than the sum of its proper divisors (1092154).

2142422 is a wasteful number, since it uses less digits than its factorization.

2142422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6982.

The product of its digits is 256, while the sum is 17.

The square root of 2142422 is about 1463.7014722955. The cubic root of 2142422 is about 128.9144716801.

Adding to 2142422 its reverse (2242412), we get a palindrome (4384834).

The spelling of 2142422 in words is "two million, one hundred forty-two thousand, four hundred twenty-two".