1340838834 has 32 divisors (see below), whose sum is σ = 2725539840. Its totient is φ = 439664400.

The previous prime is 1340838799. The next prime is 1340838887. The reversal of 1340838834 is 4388380431.

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 15 ways as a sum of consecutive naturals, for example, 200769 + ... + 207339.

It is an arithmetic number, because the mean of its divisors is an integer number (85173120).

Almost surely, 2^1340838834 is an apocalyptic number.

1340838834 is an abundant number, since it is smaller than the sum of its proper divisors (1384701006).

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

1340838834 is a wasteful number, since it uses less digits than its factorization.

1340838834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7126.

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 1340838834 is about 36617.4662422183. The cubic root of 1340838834 is about 1102.7037713449.

The spelling of 1340838834 in words is "one billion, three hundred forty million, eight hundred thirty-eight thousand, eight hundred thirty-four".