1303040304 has 80 divisors (see below), whose sum is σ = 3754447200. Its totient is φ = 432693504.

The previous prime is 1303040287. The next prime is 1303040339. The reversal of 1303040304 is 4030403031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110602 + ... + 121814.

It is an arithmetic number, because the mean of its divisors is an integer number (46930590).

Almost surely, 2^1303040304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1303040304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1877223600).

1303040304 is an abundant number, since it is smaller than the sum of its proper divisors (2451406896).

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

1303040304 is a wasteful number, since it uses less digits than its factorization.

1303040304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11499 (or 11487 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1303040304 is about 36097.6495633719. The cubic root of 1303040304 is about 1092.2430324911.

Adding to 1303040304 its reverse (4030403031), we get a palindrome (5333443335).

The spelling of 1303040304 in words is "one billion, three hundred three million, forty thousand, three hundred four".