1340840804901 has 48 divisors (see below), whose sum is σ = 2082898036800. Its totient is φ = 760577029632.

The previous prime is 1340840804899. The next prime is 1340840804987. The reversal of 1340840804901 is 1094080480431.

It is not a de Polignac number, because 1340840804901 - 2¹ = 1340840804899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340840804201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 353545 + ... + 1675313.

It is an arithmetic number, because the mean of its divisors is an integer number (43393709100).

Almost surely, 2^{1340840804901} is an apocalyptic number.

It is an amenable number.

1340840804901 is a deficient number, since it is larger than the sum of its proper divisors (742057231899).

1340840804901 is a wasteful number, since it uses less digits than its factorization.

1340840804901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321878 (or 1321841 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 1340840804901 in words is "one trillion, three hundred forty billion, eight hundred forty million, eight hundred four thousand, nine hundred one".