1343307840 has 448 divisors, whose sum is σ = 5170383360. Its totient is φ = 289013760.

The previous prime is 1343307839. The next prime is 1343307871. The reversal of 1343307840 is 487033431.

It is a tau number, because it is divible by the number of its divisors (448).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11887624 + ... + 11887736.

Almost surely, 2^1343307840 is an apocalyptic number.

1343307840 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 1343307840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2585191680).

1343307840 is an abundant number, since it is smaller than the sum of its proper divisors (3827075520).

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

1343307840 is a wasteful number, since it uses less digits than its factorization.

1343307840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 1343307840 is about 36651.1642379884. The cubic root of 1343307840 is about 1103.3801918948.

The spelling of 1343307840 in words is "one billion, three hundred forty-three million, three hundred seven thousand, eight hundred forty".