1200040244 has 12 divisors (see below), whose sum is σ = 2261614404. Its totient is φ = 553864704.

The previous prime is 1200040243. The next prime is 1200040273. The reversal of 1200040244 is 4420400021.

It can be written as a sum of positive squares in 2 ways, for example, as 546624400 + 653415844 = 23380^2 + 25562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200040241) 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, 11538797 + ... + 11538900.

It is an arithmetic number, because the mean of its divisors is an integer number (188467867).

Almost surely, 2^1200040244 is an apocalyptic number.

It is an amenable number.

1200040244 is a deficient number, since it is larger than the sum of its proper divisors (1061574160).

1200040244 is a wasteful number, since it uses less digits than its factorization.

1200040244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23077714 (or 23077712 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1200040244 is about 34641.5970186133. The cubic root of 1200040244 is about 1062.6704483919.

Adding to 1200040244 its reverse (4420400021), we get a palindrome (5620440265).

The spelling of 1200040244 in words is "one billion, two hundred million, forty thousand, two hundred forty-four".