1200432 has 40 divisors (see below), whose sum is σ = 3147120. Its totient is φ = 394240.

The previous prime is 1200403. The next prime is 1200443. The reversal of 1200432 is 2340021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4132 + ... + 4412.

It is an arithmetic number, because the mean of its divisors is an integer number (78678).

2^1200432 is an apocalyptic number.

1200432 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 1200432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573560).

1200432 is an abundant number, since it is smaller than the sum of its proper divisors (1946688).

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

1200432 is a wasteful number, since it uses less digits than its factorization.

1200432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1200432 is about 1095.6422773880. The cubic root of 1200432 is about 106.2786072912.

Adding to 1200432 its reverse (2340021), we get a palindrome (3540453).

It can be divided in two parts, 1200 and 432, that multiplied together give a square (518400 = 720²).

The spelling of 1200432 in words is "one million, two hundred thousand, four hundred thirty-two".