1220304300 has 72 divisors (see below), whose sum is σ = 3557813952. Its totient is φ = 322920000.

The previous prime is 1220304233. The next prime is 1220304301. The reversal of 1220304300 is 34030221.

1220304300 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1220304300.

It is not an unprimeable number, because it can be changed into a prime (1220304301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23775 + ... + 54825.

Almost surely, 2^1220304300 is an apocalyptic number.

1220304300 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 1220304300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1778906976).

1220304300 is an abundant number, since it is smaller than the sum of its proper divisors (2337509652).

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

1220304300 is a wasteful number, since it uses less digits than its factorization.

1220304300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31199 (or 31192 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1220304300 is about 34932.8541633804. The cubic root of 1220304300 is about 1068.6185625441.

Adding to 1220304300 its reverse (34030221), we get a palindrome (1254334521).

The spelling of 1220304300 in words is "one billion, two hundred twenty million, three hundred four thousand, three hundred".