1304343343440 has 120 divisors (see below), whose sum is σ = 4542657563808. Its totient is φ = 347824886400.

The previous prime is 1304343343411. The next prime is 1304343343453. The reversal of 1304343343440 is 443433434031.

1304343343440 is a `hidden beast` number, since 1 + 304 + 3 + 4 + 3 + 3 + 4 + 344 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1304343343395 and 1304343343404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33528486 + ... + 33567365.

Almost surely, 2^{1304343343440} is an apocalyptic number.

1304343343440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304343343440 is an abundant number, since it is smaller than the sum of its proper divisors (3238314220368).

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

1304343343440 is an equidigital number, since it uses as much as digits as its factorization.

1304343343440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67095879 (or 67095861 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 36.

Adding to 1304343343440 its reverse (443433434031), we get a palindrome (1747776777471).

The spelling of 1304343343440 in words is "one trillion, three hundred four billion, three hundred forty-three million, three hundred forty-three thousand, four hundred forty".