1200043432 has 128 divisors (see below), whose sum is σ = 2776032000. Its totient is φ = 475453440.

The previous prime is 1200043409. The next prime is 1200043483. The reversal of 1200043432 is 2343400021.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4460994 + ... + 4461262.

It is an arithmetic number, because the mean of its divisors is an integer number (21687750).

Almost surely, 2^1200043432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200043432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1388016000).

1200043432 is an abundant number, since it is smaller than the sum of its proper divisors (1575988568).

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

1200043432 is a wasteful number, since it uses less digits than its factorization.

1200043432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1200043432 is about 34641.6430326277. The cubic root of 1200043432 is about 1062.6713894132.

Adding to 1200043432 its reverse (2343400021), we get a palindrome (3543443453).

It can be divided in two parts, 1200043 and 432, that added together give a triangular number (1200475 = T₁₅₄₉).

The spelling of 1200043432 in words is "one billion, two hundred million, forty-three thousand, four hundred thirty-two".