1330313440 has 24 divisors (see below), whose sum is σ = 3142865880. Its totient is φ = 532125312.

The previous prime is 1330313431. The next prime is 1330313449. The reversal of 1330313440 is 443130331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1330313431) and next prime (1330313449).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330313449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4157070 + ... + 4157389.

It is an arithmetic number, because the mean of its divisors is an integer number (130952745).

Almost surely, 2^1330313440 is an apocalyptic number.

1330313440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330313440 is an abundant number, since it is smaller than the sum of its proper divisors (1812552440).

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

1330313440 is an equidigital number, since it uses as much as digits as its factorization.

1330313440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8314474 (or 8314466 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1330313440 is about 36473.4621334471. The cubic root of 1330313440 is about 1099.8108324844.

Adding to 1330313440 its reverse (443130331), we get a palindrome (1773443771).

The spelling of 1330313440 in words is "one billion, three hundred thirty million, three hundred thirteen thousand, four hundred forty".