1243204441 has 8 divisors (see below), whose sum is σ = 1373566464. Its totient is φ = 1119201600.

The previous prime is 1243204367. The next prime is 1243204453. The reversal of 1243204441 is 1444023421.

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 1243204441 - 2²⁵ = 1209650009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243204471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589385 + ... + 1590166.

It is an arithmetic number, because the mean of its divisors is an integer number (171695808).

Almost surely, 2^1243204441 is an apocalyptic number.

It is an amenable number.

1243204441 is a deficient number, since it is larger than the sum of its proper divisors (130362023).

1243204441 is a wasteful number, since it uses less digits than its factorization.

1243204441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179591.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1243204441 is about 35259.1043703609. The cubic root of 1243204441 is about 1075.2617184296.

Adding to 1243204441 its reverse (1444023421), we get a palindrome (2687227862).

The spelling of 1243204441 in words is "one billion, two hundred forty-three million, two hundred four thousand, four hundred forty-one".