2142226 has 8 divisors (see below), whose sum is σ = 3300300. Its totient is φ = 1042128.

The previous prime is 2142211. The next prime is 2142227. The reversal of 2142226 is 6222412.

It can be written as a sum of positive squares in 2 ways, for example, as 1500625 + 641601 = 1225^2 + 801^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2142227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14401 + ... + 14548.

2^2142226 is an apocalyptic number.

2142226 is a deficient number, since it is larger than the sum of its proper divisors (1158074).

2142226 is a wasteful number, since it uses less digits than its factorization.

2142226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28988.

The product of its digits is 384, while the sum is 19.

The square root of 2142226 is about 1463.6345172207. The cubic root of 2142226 is about 128.9105403029.

Adding to 2142226 its reverse (6222412), we get a palindrome (8364638).

The spelling of 2142226 in words is "two million, one hundred forty-two thousand, two hundred twenty-six".