1340853876 has 18 divisors (see below), whose sum is σ = 3389380722. Its totient is φ = 446951280.

The previous prime is 1340853863. The next prime is 1340853901. The reversal of 1340853876 is 6783580431.

1340853876 is a `hidden beast` number, since 1 + 3 + 40 + 8 + 538 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 785120400 + 555733476 = 28020^2 + 23574^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18622935 + ... + 18623006.

It is an arithmetic number, because the mean of its divisors is an integer number (188298929).

Almost surely, 2^1340853876 is an apocalyptic number.

It is an amenable number.

1340853876 is an abundant number, since it is smaller than the sum of its proper divisors (2048526846).

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

1340853876 is a wasteful number, since it uses less digits than its factorization.

1340853876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37245951 (or 37245946 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 1340853876 is about 36617.6716354276. The cubic root of 1340853876 is about 1102.7078948353.

The spelling of 1340853876 in words is "one billion, three hundred forty million, eight hundred fifty-three thousand, eight hundred seventy-six".