1224442 has 8 divisors (see below), whose sum is σ = 1944756. Its totient is φ = 576192.

The previous prime is 1224439. The next prime is 1224473. The reversal of 1224442 is 2444221.

It can be written as a sum of positive squares in 2 ways, for example, as 1207801 + 16641 = 1099^2 + 129^2 .

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

It is a super-2 number, since 2×1224442² = 2998516422728, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17973 + ... + 18040.

2^1224442 is an apocalyptic number.

1224442 is a deficient number, since it is larger than the sum of its proper divisors (720314).

1224442 is a wasteful number, since it uses less digits than its factorization.

1224442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36032.

The product of its digits is 512, while the sum is 19.

The square root of 1224442 is about 1106.5450736414. The cubic root of 1224442 is about 106.9824992486.

Adding to 1224442 its reverse (2444221), we get a palindrome (3668663).

The spelling of 1224442 in words is "one million, two hundred twenty-four thousand, four hundred forty-two".