1304240452040 has 16 divisors (see below), whose sum is σ = 2934541017180. Its totient is φ = 521696180800.

The previous prime is 1304240452027. The next prime is 1304240452051. The reversal of 1304240452040 is 402540424031.

It can be written as a sum of positive squares in 2 ways, for example, as 1198845426724 + 105395025316 = 1094918^2 + 324646^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1304240451994 and 1304240452012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16303005611 + ... + 16303005690.

Almost surely, 2^{1304240452040} is an apocalyptic number.

1304240452040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304240452040 is an abundant number, since it is smaller than the sum of its proper divisors (1630300565140).

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

1304240452040 is a wasteful number, since it uses less digits than its factorization.

1304240452040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32606011312 (or 32606011308 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 1304240452040 its reverse (402540424031), we get a palindrome (1706780876071).

The spelling of 1304240452040 in words is "one trillion, three hundred four billion, two hundred forty million, four hundred fifty-two thousand, forty".