1340434835 has 8 divisors (see below), whose sum is σ = 1621188096. Its totient is φ = 1063903680.

The previous prime is 1340434831. The next prime is 1340434841. The reversal of 1340434835 is 5384340431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1340434835 - 2² = 1340434831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340434795 and 1340434804.

It is not an unprimeable number, because it can be changed into a prime (1340434831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054826 + ... + 1056095.

It is an arithmetic number, because the mean of its divisors is an integer number (202648512).

Almost surely, 2^1340434835 is an apocalyptic number.

1340434835 is a deficient number, since it is larger than the sum of its proper divisors (280753261).

1340434835 is a wasteful number, since it uses less digits than its factorization.

1340434835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111053.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 1340434835 is about 36611.9493471735. The cubic root of 1340434835 is about 1102.5930108370.

The spelling of 1340434835 in words is "one billion, three hundred forty million, four hundred thirty-four thousand, eight hundred thirty-five".