1200441132 has 144 divisors (see below), whose sum is σ = 3427691904. Its totient is φ = 351072000.

The previous prime is 1200441119. The next prime is 1200441157. The reversal of 1200441132 is 2311440021.

It is a super-2 number, since 2×1200441132² = 2882117822794882848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1736907 + ... + 1737597.

It is an arithmetic number, because the mean of its divisors is an integer number (23803416).

Almost surely, 2^1200441132 is an apocalyptic number.

1200441132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200441132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1713845952).

1200441132 is an abundant number, since it is smaller than the sum of its proper divisors (2227250772).

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

1200441132 is a wasteful number, since it uses less digits than its factorization.

1200441132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1200441132 is about 34647.3827582979. The cubic root of 1200441132 is about 1062.7887678687.

Adding to 1200441132 its reverse (2311440021), we get a palindrome (3511881153).

The spelling of 1200441132 in words is "one billion, two hundred million, four hundred forty-one thousand, one hundred thirty-two".