1224242 has 8 divisors (see below), whose sum is σ = 1852956. Its totient is φ = 606592.

The previous prime is 1224239. The next prime is 1224257. The reversal of 1224242 is 2424221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 863041 + 361201 = 929^2 + 601^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1224242.

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, 2483 + ... + 2934.

2^1224242 is an apocalyptic number.

1224242 is a deficient number, since it is larger than the sum of its proper divisors (628714).

1224242 is a wasteful number, since it uses less digits than its factorization.

1224242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532.

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

The square root of 1224242 is about 1106.4546985756. The cubic root of 1224242 is about 106.9766741013.

Adding to 1224242 its reverse (2424221), we get a palindrome (3648463).

The spelling of 1224242 in words is "one million, two hundred twenty-four thousand, two hundred forty-two".