1224354489 has 16 divisors (see below), whose sum is σ = 1665455040. Its totient is φ = 799833920.

The previous prime is 1224354487. The next prime is 1224354491. The reversal of 1224354489 is 9844534221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1224354487) and next prime (1224354491).

It is a cyclic number.

It is not a de Polignac number, because 1224354489 - 2¹ = 1224354487 is a prime.

It is a super-2 number, since 2×1224354489² = 2998087829468902242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224354489.

It is not an unprimeable number, because it can be changed into a prime (1224354487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45199 + ... + 67019.

It is an arithmetic number, because the mean of its divisors is an integer number (104090940).

Almost surely, 2^1224354489 is an apocalyptic number.

It is an amenable number.

1224354489 is a deficient number, since it is larger than the sum of its proper divisors (441100551).

1224354489 is a wasteful number, since it uses less digits than its factorization.

1224354489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22200.

The product of its digits is 276480, while the sum is 42.

The square root of 1224354489 is about 34990.7771991421. Note that the first 3 decimals coincide. The cubic root of 1224354489 is about 1069.7995050432.

The spelling of 1224354489 in words is "one billion, two hundred twenty-four million, three hundred fifty-four thousand, four hundred eighty-nine".