1204440013 has 8 divisors (see below), whose sum is σ = 1384460928. Its totient is φ = 1026408624.

The previous prime is 1204439941. The next prime is 1204440023. The reversal of 1204440013 is 3100444021.

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 1204440013 - 2⁹ = 1204439501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204440023) 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 7 ways as a sum of consecutive naturals, for example, 496081 + ... + 498502.

It is an arithmetic number, because the mean of its divisors is an integer number (173057616).

Almost surely, 2^1204440013 is an apocalyptic number.

It is an amenable number.

1204440013 is a deficient number, since it is larger than the sum of its proper divisors (180020915).

1204440013 is an equidigital number, since it uses as much as digits as its factorization.

1204440013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994763.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1204440013 is about 34705.0430485254. The cubic root of 1204440013 is about 1063.9675721386.

Adding to 1204440013 its reverse (3100444021), we get a palindrome (4304884034).

The spelling of 1204440013 in words is "one billion, two hundred four million, four hundred forty thousand, thirteen".