1224042436 has 12 divisors (see below), whose sum is σ = 2199968428. Its totient is φ = 595480032.

The previous prime is 1224042431. The next prime is 1224042437. The reversal of 1224042436 is 6342404221.

It can be written as a sum of positive squares in 2 ways, for example, as 420660100 + 803382336 = 20510^2 + 28344^2 .

It is not an unprimeable number, because it can be changed into a prime (1224042431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4135131 + ... + 4135426.

Almost surely, 2^1224042436 is an apocalyptic number.

It is an amenable number.

1224042436 is a deficient number, since it is larger than the sum of its proper divisors (975925992).

1224042436 is a wasteful number, since it uses less digits than its factorization.

1224042436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8270598 (or 8270596 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1224042436 is about 34986.3178399785. The cubic root of 1224042436 is about 1069.7086102047.

Adding to 1224042436 its reverse (6342404221), we get a palindrome (7566446657).

The spelling of 1224042436 in words is "one billion, two hundred twenty-four million, forty-two thousand, four hundred thirty-six".