1224123424 has 12 divisors (see below), whose sum is σ = 2409993054. Its totient is φ = 612061696.

The previous prime is 1224123421. The next prime is 1224123427. The reversal of 1224123424 is 4243214221.

It is an interprime number because it is at equal distance from previous prime (1224123421) and next prime (1224123427).

It can be written as a sum of positive squares in only one way, i.e., 719312400 + 504811024 = 26820^2 + 22468^2 .

It is not an unprimeable number, because it can be changed into a prime (1224123421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19126897 + ... + 19126960.

Almost surely, 2^1224123424 is an apocalyptic number.

It is an amenable number.

1224123424 is a deficient number, since it is larger than the sum of its proper divisors (1185869630).

1224123424 is an equidigital number, since it uses as much as digits as its factorization.

1224123424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38253867 (or 38253859 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 1224123424 is about 34987.4752447215. The cubic root of 1224123424 is about 1069.7322018841.

Adding to 1224123424 its reverse (4243214221), we get a palindrome (5467337645).

The spelling of 1224123424 in words is "one billion, two hundred twenty-four million, one hundred twenty-three thousand, four hundred twenty-four".