1343140320 has 192 divisors, whose sum is σ = 4374155520. Its totient is φ = 346214400.

The previous prime is 1343140289. The next prime is 1343140321. The reversal of 1343140320 is 230413431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343140321) 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, 2735275 + ... + 2735765.

It is an arithmetic number, because the mean of its divisors is an integer number (22782060).

Almost surely, 2^1343140320 is an apocalyptic number.

1343140320 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 1343140320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2187077760).

1343140320 is an abundant number, since it is smaller than the sum of its proper divisors (3031015200).

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

1343140320 is a wasteful number, since it uses less digits than its factorization.

1343140320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1343140320 is about 36648.8788368758. The cubic root of 1343140320 is about 1103.3343235469.

Adding to 1343140320 its reverse (230413431), we get a palindrome (1573553751).

The spelling of 1343140320 in words is "one billion, three hundred forty-three million, one hundred forty thousand, three hundred twenty".