1310343040 has 64 divisors (see below), whose sum is σ = 3138629760. Its totient is φ = 523118592.

The previous prime is 1310343029. The next prime is 1310343071. The reversal of 1310343040 is 403430131.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 1310342999 and 1310343017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386794 + ... + 390166.

It is an arithmetic number, because the mean of its divisors is an integer number (49041090).

Almost surely, 2^1310343040 is an apocalyptic number.

1310343040 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 1310343040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569314880).

1310343040 is an abundant number, since it is smaller than the sum of its proper divisors (1828286720).

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

1310343040 is an equidigital number, since it uses as much as digits as its factorization.

1310343040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999 (or 3987 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1310343040 is about 36198.6607487073. The cubic root of 1310343040 is about 1094.2796816646.

Adding to 1310343040 its reverse (403430131), we get a palindrome (1713773171).

The spelling of 1310343040 in words is "one billion, three hundred ten million, three hundred forty-three thousand, forty".