1304220305140 has 48 divisors (see below), whose sum is σ = 2784900504960. Its totient is φ = 512926001280.

The previous prime is 1304220305117. The next prime is 1304220305147. The reversal of 1304220305140 is 415030224031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304220305147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2782609 + ... + 3217351.

It is an arithmetic number, because the mean of its divisors is an integer number (58018760520).

Almost surely, 2^{1304220305140} is an apocalyptic number.

1304220305140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1304220305140 is an abundant number, since it is smaller than the sum of its proper divisors (1480680199820).

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

1304220305140 is a wasteful number, since it uses less digits than its factorization.

1304220305140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437272 (or 437270 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 1304220305140 its reverse (415030224031), we get a palindrome (1719250529171).

The spelling of 1304220305140 in words is "one trillion, three hundred four billion, two hundred twenty million, three hundred five thousand, one hundred forty".