1204421200 has 30 divisors (see below), whose sum is σ = 2893622894. Its totient is φ = 481768320.

The previous prime is 1204421177. The next prime is 1204421293. The reversal of 1204421200 is 21244021.

It can be written as a sum of positive squares in 3 ways, for example, as 88059456 + 1116361744 = 9384^2 + 33412^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

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 5 ways as a sum of consecutive naturals, for example, 1505127 + ... + 1505926.

Almost surely, 2^1204421200 is an apocalyptic number.

1204421200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204421200 is an abundant number, since it is smaller than the sum of its proper divisors (1689201694).

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

1204421200 is a wasteful number, since it uses less digits than its factorization.

1204421200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011071 (or 3011060 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1204421200 is about 34704.7720061665. The cubic root of 1204421200 is about 1063.9620324892.

Adding to 1204421200 its reverse (21244021), we get a palindrome (1225665221).

The spelling of 1204421200 in words is "one billion, two hundred four million, four hundred twenty-one thousand, two hundred".