1204344138 has 8 divisors (see below), whose sum is σ = 2408688288. Its totient is φ = 401448044.

The previous prime is 1204344137. The next prime is 1204344149. The reversal of 1204344138 is 8314434021.

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

1204344138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1204344133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100362006 + ... + 100362017.

It is an arithmetic number, because the mean of its divisors is an integer number (301086036).

Almost surely, 2^1204344138 is an apocalyptic number.

1204344138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1204344138 is a wasteful number, since it uses less digits than its factorization.

1204344138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200724028.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 1204344138 is about 34703.6617376322. The cubic root of 1204344138 is about 1063.9393403195.

Adding to 1204344138 its reverse (8314434021), we get a palindrome (9518778159).

The spelling of 1204344138 in words is "one billion, two hundred four million, three hundred forty-four thousand, one hundred thirty-eight".