1224234442 has 4 divisors (see below), whose sum is σ = 1836351666. Its totient is φ = 612117220.

The previous prime is 1224234421. The next prime is 1224234443. The reversal of 1224234442 is 2444324221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2444324221 = 3361 ⋅727261.

It can be written as a sum of positive squares in only one way, i.e., 1194324481 + 29909961 = 34559^2 + 5469^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1224234442.

It is not an unprimeable number, because it can be changed into a prime (1224234443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306058609 + ... + 306058612.

Almost surely, 2^1224234442 is an apocalyptic number.

1224234442 is a deficient number, since it is larger than the sum of its proper divisors (612117224).

1224234442 is an equidigital number, since it uses as much as digits as its factorization.

1224234442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612117223.

The product of its digits is 12288, while the sum is 28.

The square root of 1224234442 is about 34989.0617479235. The cubic root of 1224234442 is about 1069.7645395655.

Adding to 1224234442 its reverse (2444324221), we get a palindrome (3668558663).

The spelling of 1224234442 in words is "one billion, two hundred twenty-four million, two hundred thirty-four thousand, four hundred forty-two".