1304324340 has 72 divisors (see below), whose sum is σ = 4014323040. Its totient is φ = 316198080.

The previous prime is 1304324339. The next prime is 1304324341. The reversal of 1304324340 is 434234031.

It is an interprime number because it is at equal distance from previous prime (1304324339) and next prime (1304324341).

It is a self number, because there is not a number n which added to its sum of digits gives 1304324340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304324341) 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, 82570 + ... + 97089.

Almost surely, 2^1304324340 is an apocalyptic number.

1304324340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304324340 is an abundant number, since it is smaller than the sum of its proper divisors (2709998700).

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

1304324340 is a wasteful number, since it uses less digits than its factorization.

1304324340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179693 (or 179680 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1304324340 is about 36115.4307741165. The cubic root of 1304324340 is about 1092.6016857492.

Adding to 1304324340 its reverse (434234031), we get a palindrome (1738558371).

The spelling of 1304324340 in words is "one billion, three hundred four million, three hundred twenty-four thousand, three hundred forty".