1212800 has 48 divisors (see below), whose sum is σ = 3003900. Its totient is φ = 483840.

The previous prime is 1212793. The next prime is 1212811. The reversal of 1212800 is 82121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3011 + ... + 3389.

2^1212800 is an apocalyptic number.

1212800 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 1212800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501950).

1212800 is an abundant number, since it is smaller than the sum of its proper divisors (1791100).

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

1212800 is an equidigital number, since it uses as much as digits as its factorization.

1212800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1212800 is about 1101.2719918349. The cubic root of 1212800 is about 106.6423555706.

Adding to 1212800 its reverse (82121), we get a palindrome (1294921).

The spelling of 1212800 in words is "one million, two hundred twelve thousand, eight hundred".