1244220033 has 8 divisors (see below), whose sum is σ = 1895954368. Its totient is φ = 710982864.

The previous prime is 1244220017. The next prime is 1244220041. The reversal of 1244220033 is 3300224421.

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

It is not a de Polignac number, because 1244220033 - 2⁴ = 1244220017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 59248573 = 1244220033 / (1 + 2 + 4 + 4 + 2 + 2 + 0 + 0 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 1244219991 and 1244220009.

It is not an unprimeable number, because it can be changed into a prime (1244620033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29624266 + ... + 29624307.

It is an arithmetic number, because the mean of its divisors is an integer number (236994296).

Almost surely, 2^1244220033 is an apocalyptic number.

It is an amenable number.

1244220033 is a deficient number, since it is larger than the sum of its proper divisors (651734335).

1244220033 is an equidigital number, since it uses as much as digits as its factorization.

1244220033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59248583.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1244220033 is about 35273.5032708689. The cubic root of 1244220033 is about 1075.5544377748.

Adding to 1244220033 its reverse (3300224421), we get a palindrome (4544444454).

The spelling of 1244220033 in words is "one billion, two hundred forty-four million, two hundred twenty thousand, thirty-three".