1304444420 has 24 divisors (see below), whose sum is σ = 2764469400. Its totient is φ = 516989952.

The previous prime is 1304444419. The next prime is 1304444437. The reversal of 1304444420 is 244444031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 214388164 + 1090056256 = 14642^2 + 33016^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1304444420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297005 + ... + 301364.

It is an arithmetic number, because the mean of its divisors is an integer number (115186225).

Almost surely, 2^1304444420 is an apocalyptic number.

1304444420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304444420 is an abundant number, since it is smaller than the sum of its proper divisors (1460024980).

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

1304444420 is a wasteful number, since it uses less digits than its factorization.

1304444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598487 (or 598485 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 1304444420 is about 36117.0931831453. The cubic root of 1304444420 is about 1092.6352141134.

Adding to 1304444420 its reverse (244444031), we get a palindrome (1548888451).

The spelling of 1304444420 in words is "one billion, three hundred four million, four hundred forty-four thousand, four hundred twenty".