1340426334 has 32 divisors (see below), whose sum is σ = 2894199840. Its totient is φ = 411420672.

The previous prime is 1340426333. The next prime is 1340426363. The reversal of 1340426334 is 4336240431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340426333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10894 + ... + 52910.

It is an arithmetic number, because the mean of its divisors is an integer number (90443745).

Almost surely, 2^1340426334 is an apocalyptic number.

1340426334 is an abundant number, since it is smaller than the sum of its proper divisors (1553773506).

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

1340426334 is a wasteful number, since it uses less digits than its factorization.

1340426334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42444.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 1340426334 is about 36611.8332510133. The cubic root of 1340426334 is about 1102.5906799608.

Adding to 1340426334 its reverse (4336240431), we get a palindrome (5676666765).

The spelling of 1340426334 in words is "one billion, three hundred forty million, four hundred twenty-six thousand, three hundred thirty-four".