1004342131440 has 640 divisors, whose sum is σ = 3598169702400. Its totient is φ = 257340810240.

The previous prime is 1004342131421. The next prime is 1004342131493. The reversal of 1004342131440 is 441312434001.

1004342131440 is a `hidden beast` number, since 1 + 0 + 0 + 4 + 3 + 4 + 213 + 1 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1453461495 + ... + 1453462185.

It is an arithmetic number, because the mean of its divisors is an integer number (5622140160).

Almost surely, 2^{1004342131440} is an apocalyptic number.

1004342131440 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 1004342131440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1799084851200).

1004342131440 is an abundant number, since it is smaller than the sum of its proper divisors (2593827570960).

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

1004342131440 is a wasteful number, since it uses less digits than its factorization.

1004342131440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1004342131440 its reverse (441312434001), we get a palindrome (1445654565441).

The spelling of 1004342131440 in words is "one trillion, four billion, three hundred forty-two million, one hundred thirty-one thousand, four hundred forty".