1313342040 has 64 divisors (see below), whose sum is σ = 3998856960. Its totient is φ = 344995200.

The previous prime is 1313342027. The next prime is 1313342083. The reversal of 1313342040 is 402433131.

It is a junction number, because it is equal to n+sod(n) for n = 1313341998 and 1313342016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73636 + ... + 89715.

It is an arithmetic number, because the mean of its divisors is an integer number (62482140).

Almost surely, 2^1313342040 is an apocalyptic number.

1313342040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313342040 is an abundant number, since it is smaller than the sum of its proper divisors (2685514920).

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

1313342040 is a wasteful number, since it uses less digits than its factorization.

1313342040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163432 (or 163428 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1313342040 is about 36240.0612582264. The cubic root of 1313342040 is about 1095.1138765244.

Adding to 1313342040 its reverse (402433131), we get a palindrome (1715775171).

The spelling of 1313342040 in words is "one billion, three hundred thirteen million, three hundred forty-two thousand, forty".