1233220433 has 8 divisors (see below), whose sum is σ = 1245604008. Its totient is φ = 1220886144.

The previous prime is 1233220423. The next prime is 1233220487. The reversal of 1233220433 is 3340223321.

It can be written as a sum of positive squares in 4 ways, for example, as 217651009 + 1015569424 = 14753^2 + 31868^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1233220433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1233220399 and 1233220408.

It is not an unprimeable number, because it can be changed into a prime (1233220423) 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, 39035 + ... + 63167.

It is an arithmetic number, because the mean of its divisors is an integer number (155700501).

Almost surely, 2^1233220433 is an apocalyptic number.

It is an amenable number.

1233220433 is a deficient number, since it is larger than the sum of its proper divisors (12383575).

1233220433 is a wasteful number, since it uses less digits than its factorization.

1233220433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24643.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 1233220433 is about 35117.2384022434. The cubic root of 1233220433 is about 1072.3755509321.

Adding to 1233220433 its reverse (3340223321), we get a palindrome (4573443754).

The spelling of 1233220433 in words is "one billion, two hundred thirty-three million, two hundred twenty thousand, four hundred thirty-three".