1343309040 has 120 divisors (see below), whose sum is σ = 4562185680. Its totient is φ = 354173952.

The previous prime is 1343308973. The next prime is 1343309041. The reversal of 1343309040 is 409033431.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 1343308995 and 1343309013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343309041) 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, 53599 + ... + 74561.

It is an arithmetic number, because the mean of its divisors is an integer number (38018214).

Almost surely, 2^1343309040 is an apocalyptic number.

1343309040 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 1343309040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2281092840).

1343309040 is an abundant number, since it is smaller than the sum of its proper divisors (3218876640).

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

1343309040 is a wasteful number, since it uses less digits than its factorization.

1343309040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21071 (or 21062 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 1343309040 is about 36651.1806085425. The cubic root of 1343309040 is about 1103.3805204508.

The spelling of 1343309040 in words is "one billion, three hundred forty-three million, three hundred nine thousand, forty".