1142226 has 48 divisors (see below), whose sum is σ = 2695680. Its totient is φ = 348480.

The previous prime is 1142201. The next prime is 1142233. The reversal of 1142226 is 6222411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1142199 and 1142208.

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 23 ways as a sum of consecutive naturals, for example, 12790 + ... + 12878.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2^1142226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347840).

1142226 is an abundant number, since it is smaller than the sum of its proper divisors (1553454).

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

1142226 is a wasteful number, since it uses less digits than its factorization.

1142226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 148 counting only the distinct ones).

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

The square root of 1142226 is about 1068.7497368421. The cubic root of 1142226 is about 104.5323419654.

Adding to 1142226 its reverse (6222411), we get a palindrome (7364637).

The spelling of 1142226 in words is "one million, one hundred forty-two thousand, two hundred twenty-six".