1224240641 has 8 divisors (see below), whose sum is σ = 1324173480. Its totient is φ = 1125130752.

The previous prime is 1224240629. The next prime is 1224240649. The reversal of 1224240641 is 1460424221.

It can be written as a sum of positive squares in 4 ways, for example, as 402845041 + 821395600 = 20071^2 + 28660^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1224240641 - 2¹⁴ = 1224224257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224240641.

It is not an unprimeable number, because it can be changed into a prime (1224240649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 202640 + ... + 208593.

It is an arithmetic number, because the mean of its divisors is an integer number (165521685).

Almost surely, 2^1224240641 is an apocalyptic number.

It is an amenable number.

1224240641 is a deficient number, since it is larger than the sum of its proper divisors (99932839).

1224240641 is a wasteful number, since it uses less digits than its factorization.

1224240641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411475.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 1224240641 is about 34989.1503326388. The cubic root of 1224240641 is about 1069.7663451726.

Adding to 1224240641 its reverse (1460424221), we get a palindrome (2684664862).

The spelling of 1224240641 in words is "one billion, two hundred twenty-four million, two hundred forty thousand, six hundred forty-one".