1313433340 has 48 divisors (see below), whose sum is σ = 2796131520. Its totient is φ = 518192640.

The previous prime is 1313433313. The next prime is 1313433353. The reversal of 1313433340 is 433343131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577726 + ... + 579994.

It is an arithmetic number, because the mean of its divisors is an integer number (58252740).

Almost surely, 2^1313433340 is an apocalyptic number.

1313433340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313433340 is an abundant number, since it is smaller than the sum of its proper divisors (1482698180).

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

1313433340 is a wasteful number, since it uses less digits than its factorization.

1313433340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662 (or 2660 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 1313433340 is about 36241.3208920426. The cubic root of 1313433340 is about 1095.1392523918.

Adding to 1313433340 its reverse (433343131), we get a palindrome (1746776471).

The spelling of 1313433340 in words is "one billion, three hundred thirteen million, four hundred thirty-three thousand, three hundred forty".