1340424004304 has 160 divisors (see below), whose sum is σ = 3327953664000. Its totient is φ = 507741073920.

The previous prime is 1340424004273. The next prime is 1340424004327. The reversal of 1340424004304 is 4034004240431.

It is a happy number.

It is a super-2 number, since 2×1340424004304² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 63761507 + ... + 63782525.

It is an arithmetic number, because the mean of its divisors is an integer number (20799710400).

Almost surely, 2^{1340424004304} is an apocalyptic number.

1340424004304 is a gapful number since it is divisible by the number (14) 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 1340424004304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663976832000).

1340424004304 is an abundant number, since it is smaller than the sum of its proper divisors (1987529659696).

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

1340424004304 is a wasteful number, since it uses less digits than its factorization.

1340424004304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22481 (or 22475 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 1340424004304 its reverse (4034004240431), we get a palindrome (5374428244735).

The spelling of 1340424004304 in words is "one trillion, three hundred forty billion, four hundred twenty-four million, four thousand, three hundred four".