1304031344 has 80 divisors (see below), whose sum is σ = 3163297536. Its totient is φ = 505920000.

The previous prime is 1304031331. The next prime is 1304031353. The reversal of 1304031344 is 4431304031.

It is a super-2 number, since 2×1304031344² = 3400995492268892672, which contains 22 as substring.

It is a congruent number.

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, 307124 + ... + 311340.

Almost surely, 2^1304031344 is an apocalyptic number.

1304031344 is a gapful number since it is divisible by the number (14) 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 1304031344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581648768).

1304031344 is an abundant number, since it is smaller than the sum of its proper divisors (1859266192).

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

1304031344 is a wasteful number, since it uses less digits than its factorization.

1304031344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494 (or 4488 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1304031344 is about 36111.3741638282. The cubic root of 1304031344 is about 1092.5198676801.

Adding to 1304031344 its reverse (4431304031), we get a palindrome (5735335375).

The spelling of 1304031344 in words is "one billion, three hundred four million, thirty-one thousand, three hundred forty-four".