1200440004 has 12 divisors (see below), whose sum is σ = 2801026704. Its totient is φ = 400146664.

The previous prime is 1200439991. The next prime is 1200440011. The reversal of 1200440004 is 4000440021.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 50018322 + ... + 50018345.

It is an arithmetic number, because the mean of its divisors is an integer number (233418892).

Almost surely, 2^1200440004 is an apocalyptic number.

It is an amenable number.

1200440004 is an abundant number, since it is smaller than the sum of its proper divisors (1600586700).

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

1200440004 is a wasteful number, since it uses less digits than its factorization.

1200440004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100036674 (or 100036672 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1200440004 is about 34647.3664800083. The cubic root of 1200440004 is about 1062.7884349838.

Adding to 1200440004 its reverse (4000440021), we get a palindrome (5200880025).

The spelling of 1200440004 in words is "one billion, two hundred million, four hundred forty thousand, four".