2221442 has 16 divisors (see below), whose sum is σ = 3576960. Its totient is φ = 1031472.

The previous prime is 2221433. The next prime is 2221447. The reversal of 2221442 is 2441222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221442.

It is not an unprimeable number, because it can be changed into a prime (2221447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463 + ... + 2565.

It is an arithmetic number, because the mean of its divisors is an integer number (223560).

2^2221442 is an apocalyptic number.

2221442 is a deficient number, since it is larger than the sum of its proper divisors (1355518).

2221442 is a wasteful number, since it uses less digits than its factorization.

2221442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177.

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

The square root of 2221442 is about 1490.4502675366. The cubic root of 2221442 is about 130.4803139176.

Adding to 2221442 its reverse (2441222), we get a palindrome (4662664).

The spelling of 2221442 in words is "two million, two hundred twenty-one thousand, four hundred forty-two".