1305502005240 has 128 divisors (see below), whose sum is σ = 4392343584000. Its totient is φ = 344880249984.

The previous prime is 1305502005239. The next prime is 1305502005307. The reversal of 1305502005240 is 425002055031.

It is a happy number.

1305502005240 is a `hidden beast` number, since 1 + 3 + 0 + 550 + 20 + 0 + 52 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5533030 + ... + 5764149.

It is an arithmetic number, because the mean of its divisors is an integer number (34315184250).

Almost surely, 2^{1305502005240} is an apocalyptic number.

1305502005240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1305502005240 is an abundant number, since it is smaller than the sum of its proper divisors (3086841578760).

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

1305502005240 is a wasteful number, since it uses less digits than its factorization.

1305502005240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11297306 (or 11297296 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 1305502005240 in words is "one trillion, three hundred five billion, five hundred two million, five thousand, two hundred forty".