1313404042440 has 128 divisors (see below), whose sum is σ = 4767987836160. Its totient is φ = 282547421184.

The previous prime is 1313404042421. The next prime is 1313404042453. The reversal of 1313404042440 is 442404043131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1313404042398 and 1313404042407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45973257 + ... + 46001816.

It is an arithmetic number, because the mean of its divisors is an integer number (37249904970).

Almost surely, 2^{1313404042440} is an apocalyptic number.

1313404042440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313404042440 is an abundant number, since it is smaller than the sum of its proper divisors (3454583793720).

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

1313404042440 is a wasteful number, since it uses less digits than its factorization.

1313404042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91975111 (or 91975107 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 1313404042440 its reverse (442404043131), we get a palindrome (1755808085571).

The spelling of 1313404042440 in words is "one trillion, three hundred thirteen billion, four hundred four million, forty-two thousand, four hundred forty".