1340045204240 has 80 divisors (see below), whose sum is σ = 3296232688320. Its totient is φ = 505228792320.

The previous prime is 1340045204231. The next prime is 1340045204257. The reversal of 1340045204240 is 424025400431.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1340045204240² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1938146 + ... + 2537025.

It is an arithmetic number, because the mean of its divisors is an integer number (41202908604).

Almost surely, 2^{1340045204240} is an apocalyptic number.

1340045204240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340045204240 is an abundant number, since it is smaller than the sum of its proper divisors (1956187484080).

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

1340045204240 is a wasteful number, since it uses less digits than its factorization.

1340045204240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475400 (or 4475394 counting only the distinct ones).

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

The spelling of 1340045204240 in words is "one trillion, three hundred forty billion, forty-five million, two hundred four thousand, two hundred forty".