1230240433 has 4 divisors (see below), whose sum is σ = 1231784820. Its totient is φ = 1228696048.

The previous prime is 1230240421. The next prime is 1230240439. The reversal of 1230240433 is 3340420321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 834747664 + 395492769 = 28892^2 + 19887^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230240433 - 2⁹ = 1230239921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230240439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770998 + ... + 772591.

It is an arithmetic number, because the mean of its divisors is an integer number (307946205).

Almost surely, 2^1230240433 is an apocalyptic number.

It is an amenable number.

1230240433 is a deficient number, since it is larger than the sum of its proper divisors (1544387).

1230240433 is an equidigital number, since it uses as much as digits as its factorization.

1230240433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544386.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 1230240433 is about 35074.7834348268. The cubic root of 1230240433 is about 1071.5110781068.

Adding to 1230240433 its reverse (3340420321), we get a palindrome (4570660754).

The spelling of 1230240433 in words is "one billion, two hundred thirty million, two hundred forty thousand, four hundred thirty-three".