1340813885 has 32 divisors (see below), whose sum is σ = 1757624832. Its totient is φ = 977996800.

The previous prime is 1340813861. The next prime is 1340813923. The reversal of 1340813885 is 5883180431.

It is not a de Polignac number, because 1340813885 - 2¹⁶ = 1340748349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401834 + ... + 405156.

It is an arithmetic number, because the mean of its divisors is an integer number (54925776).

Almost surely, 2^1340813885 is an apocalyptic number.

It is an amenable number.

1340813885 is a deficient number, since it is larger than the sum of its proper divisors (416810947).

1340813885 is a wasteful number, since it uses less digits than its factorization.

1340813885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 1340813885 is about 36617.1255698751. The cubic root of 1340813885 is about 1102.6969319629.

The spelling of 1340813885 in words is "one billion, three hundred forty million, eight hundred thirteen thousand, eight hundred eighty-five".