1305620345240 has 16 divisors (see below), whose sum is σ = 2937645776880. Its totient is φ = 522248138080.

The previous prime is 1305620345233. The next prime is 1305620345269. The reversal of 1305620345240 is 425430265031.

It is a self number, because there is not a number n which added to its sum of digits gives 1305620345240.

It is a congruent number.

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, 16320254276 + ... + 16320254355.

It is an arithmetic number, because the mean of its divisors is an integer number (183602861055).

Almost surely, 2^{1305620345240} is an apocalyptic number.

1305620345240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305620345240 is an abundant number, since it is smaller than the sum of its proper divisors (1632025431640).

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

1305620345240 is a wasteful number, since it uses less digits than its factorization.

1305620345240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32640508642 (or 32640508638 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 1305620345240 in words is "one trillion, three hundred five billion, six hundred twenty million, three hundred forty-five thousand, two hundred forty".