1304243254040 has 32 divisors (see below), whose sum is σ = 2936946898080. Its totient is φ = 521270710272.

The previous prime is 1304243254037. The next prime is 1304243254063. The reversal of 1304243254040 is 404523424031.

It is a junction number, because it is equal to n+sod(n) for n = 1304243253988 and 1304243254006.

It is a congruent number.

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, 13281449 + ... + 13379288.

It is an arithmetic number, because the mean of its divisors is an integer number (91779590565).

Almost surely, 2^{1304243254040} is an apocalyptic number.

1304243254040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304243254040 is an abundant number, since it is smaller than the sum of its proper divisors (1632703644040).

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

1304243254040 is a wasteful number, since it uses less digits than its factorization.

1304243254040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26661971 (or 26661967 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 1304243254040 its reverse (404523424031), we get a palindrome (1708766678071).

The spelling of 1304243254040 in words is "one trillion, three hundred four billion, two hundred forty-three million, two hundred fifty-four thousand, forty".