1200441120 has 48 divisors (see below), whose sum is σ = 3781391040. Its totient is φ = 320117504.

The previous prime is 1200441119. The next prime is 1200441157. The reversal of 1200441120 is 211440021.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1200441120.

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 7 ways as a sum of consecutive naturals, for example, 1249980 + ... + 1250939.

It is an arithmetic number, because the mean of its divisors is an integer number (78778980).

Almost surely, 2^1200441120 is an apocalyptic number.

1200441120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200441120 is an abundant number, since it is smaller than the sum of its proper divisors (2580949920).

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

1200441120 is a wasteful number, since it uses less digits than its factorization.

1200441120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500937 (or 2500929 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1200441120 is about 34647.3825851247. The cubic root of 1200441120 is about 1062.7887643273.

Adding to 1200441120 its reverse (211440021), we get a palindrome (1411881141).

The spelling of 1200441120 in words is "one billion, two hundred million, four hundred forty-one thousand, one hundred twenty".