1224340442 has 48 divisors (see below), whose sum is σ = 2157398712. Its totient is φ = 518768640.

The previous prime is 1224340441. The next prime is 1224340477. The reversal of 1224340442 is 2440434221.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 28633201 + 1195707241 = 5351^2 + 34579^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1224340441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232988 + ... + 238184.

Almost surely, 2^1224340442 is an apocalyptic number.

1224340442 is a deficient number, since it is larger than the sum of its proper divisors (933058270).

1224340442 is a wasteful number, since it uses less digits than its factorization.

1224340442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283 (or 5270 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1224340442 is about 34990.5764742452. The cubic root of 1224340442 is about 1069.7954137632.

Adding to 1224340442 its reverse (2440434221), we get a palindrome (3664774663).

The spelling of 1224340442 in words is "one billion, two hundred twenty-four million, three hundred forty thousand, four hundred forty-two".