1304441111440 has 40 divisors (see below), whose sum is σ = 3078091650240. Its totient is φ = 513988734336.

The previous prime is 1304441111419. The next prime is 1304441111453. The reversal of 1304441111440 is 441111444031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1304441111440² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1304441111399 and 1304441111408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121677580 + ... + 121688299.

It is an arithmetic number, because the mean of its divisors is an integer number (76952291256).

Almost surely, 2^{1304441111440} is an apocalyptic number.

1304441111440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304441111440 is an abundant number, since it is smaller than the sum of its proper divisors (1773650538800).

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

1304441111440 is a wasteful number, since it uses less digits than its factorization.

1304441111440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243365959 (or 243365953 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 1304441111440 its reverse (441111444031), we get a palindrome (1745552555471).

The spelling of 1304441111440 in words is "one trillion, three hundred four billion, four hundred forty-one million, one hundred eleven thousand, four hundred forty".