1304200420 has 96 divisors (see below), whose sum is σ = 2892105216. Its totient is φ = 493516800.

The previous prime is 1304200399. The next prime is 1304200421. The reversal of 1304200420 is 240024031.

It is a junction number, because it is equal to n+sod(n) for n = 1304200394 and 1304200403.

It is not an unprimeable number, because it can be changed into a prime (1304200421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5411500 + ... + 5411740.

It is an arithmetic number, because the mean of its divisors is an integer number (30126096).

Almost surely, 2^1304200420 is an apocalyptic number.

1304200420 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 1304200420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1446052608).

1304200420 is an abundant number, since it is smaller than the sum of its proper divisors (1587904796).

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

1304200420 is a wasteful number, since it uses less digits than its factorization.

1304200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1304200420 is about 36113.7151232049. The cubic root of 1304200420 is about 1092.5670830346.

Adding to 1304200420 its reverse (240024031), we get a palindrome (1544224451).

The spelling of 1304200420 in words is "one billion, three hundred four million, two hundred thousand, four hundred twenty".