11961200 has 60 divisors (see below), whose sum is σ = 30444480. Its totient is φ = 4500480.

The previous prime is 11961197. The next prime is 11961211. The reversal of 11961200 is 216911.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5921 + ... + 7679.

It is an arithmetic number, because the mean of its divisors is an integer number (507408).

Almost surely, 2^11961200 is an apocalyptic number.

11961200 is a gapful number since it is divisible by the number (10) 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 11961200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15222240).

11961200 is an abundant number, since it is smaller than the sum of its proper divisors (18483280).

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

11961200 is a wasteful number, since it uses less digits than its factorization.

11961200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 11961200 is about 3458.4967832861. The cubic root of 11961200 is about 228.6958325763.

The spelling of 11961200 in words is "eleven million, nine hundred sixty-one thousand, two hundred".